Date   

Re: Cutting Off / Parting

John
 

Close but the Armstrong blades I have are not hollow ground on the side. I also have blades by other makers that are the same as the Armstrong.

Cheers

John B

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of G K via groups.io
Sent: 01 July 2021 05:18
To: southbendlathe@groups.io; SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

Looks like it is called a "Johnson Style, Hollow Ground Cut Off Blade" No idea if the 1/2-inch blade is really 1/2-inch. or 12mm.

 

Inline image

 

On Wednesday, June 30, 2021, 01:49:59 AM CDT, John <reproturn@...> wrote:

 

 

OK I’m back.

I have an Armstrong No.20 tool and an Armstrong ½ inch blade.

Too hard to escribe the blade profile so I took pic – the blade in the No.20 tool has same profile.

Never tried to post a pic before so I hope it comes through.

 

The blade measure 12mm top to bottom, 2.25mm wide at the top and 1.55mm wide at the bottom.

Sorry if you likes inches but I find metric easier to use on the vernier.

The bottom is not flat but has a bevel to match the bevel in the tool holder. Likewise the top is only flat for about half the width then has a low bevel. This allows the blade to engage firmly with the cam lock on the tool.

Cheers

John B

 

 

 

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of G K via groups.io
Sent: 30 June 2021 14:06
To: SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

John,

 

I assume "not rectangular" implies wider at eh top of the blade than the bottom.  Could you check the dimensions of the blades you have?

 

Thanks,

 

Greg

 

On Tuesday, June 29, 2021, 10:56:43 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

John do your original 1/2" measure the full 1/2" or are they like my 5/8" a bit smaller?   If so what does the groove in your holder measure for height?

 

On Tuesday, June 29, 2021, 10:50:38 PM CDT, John <reproturn@...> wrote:

 

 

I have some original blades. They were not the regular rectangular kind that is mostly sold today. Armstrong and Williams made a tapered profile blade. If you look closely at the Williams catalogue extract you can see this.

Cheers

John B

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of rlm_mcv via groups.io
Sent: 30 June 2021 13:45
To:
SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

I do not have any 1/2" cuttoff steel but a piece of Armstrong brand 5/8" I have only measures 0.59 not 0.625. 

 

On Tuesday, June 29, 2021, 10:16:10 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

Looking online I find no suppliers of 7/16" but lots of 1/2".  With the manufactures listing the product as using 1/2" also makes it seem as something is afoul here.

 

On Tuesday, June 29, 2021, 10:02:43 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Agreed, but 1/2-inch won't fit in the tool in front of me.  I need to believe the tool in hand over a Armstrong and Williams catalog.

 

 

 

On Tuesday, June 29, 2021, 09:59:01 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

Inline image

I would believe the Williams and Armstrong catalogues before E Bay

 

On Tuesday, June 29, 2021, 9:52:09 PM CDT, Andrei <calciu1@...> wrote:

 

 

It uses 7/16. See here

Typos are courtesy of autocorrect.

 


From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> on behalf of rlm_mcv via groups.io <rlm_mcv@...>
Sent: Tuesday, June 29, 2021 10:42:37 PM
To:
SouthBendLathe@groups.io <SouthBendLathe@groups.io>
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

Inline image

 

 

On Tuesday, June 29, 2021, 9:36:34 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Unfortunately, no go with 1/2-inch. When I measure the opening I get 0.445 to 0.486. Maybe 7/16-inch. Can’t find those anywhere.

On Tuesday, June 29, 2021, 8:52 PM, wlw19958 <wlw-19958@...> wrote:

Hi There,

As far as I know, the 29 uses a 3/32" x 1/2" cut-off blade.  These
usually come about 4" to 4-1/2" long.  There are lots of them on eBay.

Good Luck!
-Blue Chips-
Webb


Re: Cutting Off / Parting

G K
 

I also thought $56 was a bit for my abilities, at this time.   sanded (1-inch belt sander) a 5 degree edge (cut a maple jig in the table saw) on a carbide tipped cut-off tool that was 0.500.  Sanded it down to 0.450 and it fits nicely.  The tightening cam is quite forgiving.  Only time will tell if all is well.

Thanks for everyone's input.






On Wednesday, June 30, 2021, 08:24:42 PM CDT, Bill in OKC too via groups.io <wmrmeyers@...> wrote:


Sounds like it's precision-ground to a complex shape & angles. I think I will have to make do with the the HF $4/packet rectangular blades that fit my parting tool holders for the QCTP's for my lathes. But if he wants one to fit his tool holder he can now buy or make one with the info he now has.

If I owned a surface grinder I'd be tempted to make one. And I do want a surface grinder, anyway. YMMV

William R. Meyers, MSgt, USAF(Ret.)


A human being should be able to change a diaper, plan an invasion,
butcher a hog, conn a ship, design a building, write a sonnet, balance
accounts, build a wall, set a bone, comfort the dying, take orders,
give orders, cooperate, act alone, solve equations, analyze a new
problem, pitch manure, program a computer, cook a tasty meal, fight
efficiently, die gallantly. Specialization is for insects.
LAZARUS LONG (Robert A. Heinlein)





On Wednesday, June 30, 2021, 07:46:12 PM CDT, mike allen <animal@...> wrote:


        $ 56 . for a single parting tool ? That's @ half of what I paid for my QCTP with 5 tool holders . Am I missing something here ?

        animal

On 6/30/2021 1:09 PM, rlm_mcv via groups.io wrote:
On Wednesday, June 30, 2021, 2:18:05 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:


Looks like it is called a "Johnson Style, Hollow Ground Cut Off Blade" No idea if the 1/2-inch blade is really 1/2-inch. or 12mm.

Inline                       image


On Wednesday, June 30, 2021, 01:49:59 AM CDT, John <reproturn@...> wrote:


OK I’m back.

I have an Armstrong No.20 tool and an Armstrong ½ inch blade.

Too hard to escribe the blade profile so I took pic – the blade in the No.20 tool has same profile.

Never tried to post a pic before so I hope it comes through.

 

The blade measure 12mm top to bottom, 2.25mm wide at the top and 1.55mm wide at the bottom.

Sorry if you likes inches but I find metric easier to use on the vernier.

The bottom is not flat but has a bevel to match the bevel in the tool holder. Likewise the top is only flat for about half the width then has a low bevel. This allows the blade to engage firmly with the cam lock on the tool.

Cheers

John B

 

 

 

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of G K via groups.io
Sent: 30 June 2021 14:06
To: SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

John,

 

I assume "not rectangular" implies wider at eh top of the blade than the bottom.  Could you check the dimensions of the blades you have?

 

Thanks,

 

Greg

 

On Tuesday, June 29, 2021, 10:56:43 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

John do your original 1/2" measure the full 1/2" or are they like my 5/8" a bit smaller?   If so what does the groove in your holder measure for height?

 

On Tuesday, June 29, 2021, 10:50:38 PM CDT, John <reproturn@...> wrote:

 

 

I have some original blades. They were not the regular rectangular kind that is mostly sold today. Armstrong and Williams made a tapered profile blade. If you look closely at the Williams catalogue extract you can see this.

Cheers

John B

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of rlm_mcv via groups.io
Sent: 30 June 2021 13:45
To:
SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

I do not have any 1/2" cuttoff steel but a piece of Armstrong brand 5/8" I have only measures 0.59 not 0.625. 

 

On Tuesday, June 29, 2021, 10:16:10 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

Looking online I find no suppliers of 7/16" but lots of 1/2".  With the manufactures listing the product as using 1/2" also makes it seem as something is afoul here.

 

On Tuesday, June 29, 2021, 10:02:43 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Agreed, but 1/2-inch won't fit in the tool in front of me.  I need to believe the tool in hand over a Armstrong and Williams catalog.

 

 

 

On Tuesday, June 29, 2021, 09:59:01 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

Inline                                                           image

I would believe the Williams and Armstrong catalogues before E Bay

 

On Tuesday, June 29, 2021, 9:52:09 PM CDT, Andrei <calciu1@...> wrote:

 

 

It uses 7/16. See here

Typos are courtesy of autocorrect.

 


From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> on behalf of rlm_mcv via groups.io <rlm_mcv@...>
Sent: Tuesday, June 29, 2021 10:42:37 PM
To:
SouthBendLathe@groups.io <SouthBendLathe@groups.io>
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

Inline                                                           image

 

 

On Tuesday, June 29, 2021, 9:36:34 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Unfortunately, no go with 1/2-inch. When I measure the opening I get 0.445 to 0.486. Maybe 7/16-inch. Can’t find those anywhere.


On Tuesday, June 29, 2021, 8:52 PM, wlw19958 <wlw-19958@...> wrote:

Hi There,

As far as I know, the 29 uses a 3/32" x 1/2" cut-off blade.  These
usually come about 4" to 4-1/2" long.  There are lots of them on eBay.

Good Luck!
-Blue Chips-
Webb


Re: Cutting Off / Parting

Bill in OKC too
 

Sounds like it's precision-ground to a complex shape & angles. I think I will have to make do with the the HF $4/packet rectangular blades that fit my parting tool holders for the QCTP's for my lathes. But if he wants one to fit his tool holder he can now buy or make one with the info he now has.

If I owned a surface grinder I'd be tempted to make one. And I do want a surface grinder, anyway. YMMV

William R. Meyers, MSgt, USAF(Ret.)


A human being should be able to change a diaper, plan an invasion,
butcher a hog, conn a ship, design a building, write a sonnet, balance
accounts, build a wall, set a bone, comfort the dying, take orders,
give orders, cooperate, act alone, solve equations, analyze a new
problem, pitch manure, program a computer, cook a tasty meal, fight
efficiently, die gallantly. Specialization is for insects.
LAZARUS LONG (Robert A. Heinlein)





On Wednesday, June 30, 2021, 07:46:12 PM CDT, mike allen <animal@...> wrote:


        $ 56 . for a single parting tool ? That's @ half of what I paid for my QCTP with 5 tool holders . Am I missing something here ?

        animal

On 6/30/2021 1:09 PM, rlm_mcv via groups.io wrote:
On Wednesday, June 30, 2021, 2:18:05 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:


Looks like it is called a "Johnson Style, Hollow Ground Cut Off Blade" No idea if the 1/2-inch blade is really 1/2-inch. or 12mm.

Inline                       image


On Wednesday, June 30, 2021, 01:49:59 AM CDT, John <reproturn@...> wrote:


OK I’m back.

I have an Armstrong No.20 tool and an Armstrong ½ inch blade.

Too hard to escribe the blade profile so I took pic – the blade in the No.20 tool has same profile.

Never tried to post a pic before so I hope it comes through.

 

The blade measure 12mm top to bottom, 2.25mm wide at the top and 1.55mm wide at the bottom.

Sorry if you likes inches but I find metric easier to use on the vernier.

The bottom is not flat but has a bevel to match the bevel in the tool holder. Likewise the top is only flat for about half the width then has a low bevel. This allows the blade to engage firmly with the cam lock on the tool.

Cheers

John B

 

 

 

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of G K via groups.io
Sent: 30 June 2021 14:06
To: SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

John,

 

I assume "not rectangular" implies wider at eh top of the blade than the bottom.  Could you check the dimensions of the blades you have?

 

Thanks,

 

Greg

 

On Tuesday, June 29, 2021, 10:56:43 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

John do your original 1/2" measure the full 1/2" or are they like my 5/8" a bit smaller?   If so what does the groove in your holder measure for height?

 

On Tuesday, June 29, 2021, 10:50:38 PM CDT, John <reproturn@...> wrote:

 

 

I have some original blades. They were not the regular rectangular kind that is mostly sold today. Armstrong and Williams made a tapered profile blade. If you look closely at the Williams catalogue extract you can see this.

Cheers

John B

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of rlm_mcv via groups.io
Sent: 30 June 2021 13:45
To:
SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

I do not have any 1/2" cuttoff steel but a piece of Armstrong brand 5/8" I have only measures 0.59 not 0.625. 

 

On Tuesday, June 29, 2021, 10:16:10 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

Looking online I find no suppliers of 7/16" but lots of 1/2".  With the manufactures listing the product as using 1/2" also makes it seem as something is afoul here.

 

On Tuesday, June 29, 2021, 10:02:43 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Agreed, but 1/2-inch won't fit in the tool in front of me.  I need to believe the tool in hand over a Armstrong and Williams catalog.

 

 

 

On Tuesday, June 29, 2021, 09:59:01 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

Inline                                                           image

I would believe the Williams and Armstrong catalogues before E Bay

 

On Tuesday, June 29, 2021, 9:52:09 PM CDT, Andrei <calciu1@...> wrote:

 

 

It uses 7/16. See here

Typos are courtesy of autocorrect.

 


From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> on behalf of rlm_mcv via groups.io <rlm_mcv@...>
Sent: Tuesday, June 29, 2021 10:42:37 PM
To:
SouthBendLathe@groups.io <SouthBendLathe@groups.io>
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

Inline                                                           image

 

 

On Tuesday, June 29, 2021, 9:36:34 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Unfortunately, no go with 1/2-inch. When I measure the opening I get 0.445 to 0.486. Maybe 7/16-inch. Can’t find those anywhere.


On Tuesday, June 29, 2021, 8:52 PM, wlw19958 <wlw-19958@...> wrote:

Hi There,

As far as I know, the 29 uses a 3/32" x 1/2" cut-off blade.  These
usually come about 4" to 4-1/2" long.  There are lots of them on eBay.

Good Luck!
-Blue Chips-
Webb


Re: Cutting Off / Parting

mike allen
 

        $ 56 . for a single parting tool ? That's @ half of what I paid for my QCTP with 5 tool holders . Am I missing something here ?

        animal

On 6/30/2021 1:09 PM, rlm_mcv via groups.io wrote:
On Wednesday, June 30, 2021, 2:18:05 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:


Looks like it is called a "Johnson Style, Hollow Ground Cut Off Blade" No idea if the 1/2-inch blade is really 1/2-inch. or 12mm.




On Wednesday, June 30, 2021, 01:49:59 AM CDT, John <reproturn@...> wrote:


OK I’m back.

I have an Armstrong No.20 tool and an Armstrong ½ inch blade.

Too hard to escribe the blade profile so I took pic – the blade in the No.20 tool has same profile.

Never tried to post a pic before so I hope it comes through.

 

The blade measure 12mm top to bottom, 2.25mm wide at the top and 1.55mm wide at the bottom.

Sorry if you likes inches but I find metric easier to use on the vernier.

The bottom is not flat but has a bevel to match the bevel in the tool holder. Likewise the top is only flat for about half the width then has a low bevel. This allows the blade to engage firmly with the cam lock on the tool.

Cheers

John B

 

 

 

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of G K via groups.io
Sent: 30 June 2021 14:06
To: SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

John,

 

I assume "not rectangular" implies wider at eh top of the blade than the bottom.  Could you check the dimensions of the blades you have?

 

Thanks,

 

Greg

 

On Tuesday, June 29, 2021, 10:56:43 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

John do your original 1/2" measure the full 1/2" or are they like my 5/8" a bit smaller?   If so what does the groove in your holder measure for height?

 

On Tuesday, June 29, 2021, 10:50:38 PM CDT, John <reproturn@...> wrote:

 

 

I have some original blades. They were not the regular rectangular kind that is mostly sold today. Armstrong and Williams made a tapered profile blade. If you look closely at the Williams catalogue extract you can see this.

Cheers

John B

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of rlm_mcv via groups.io
Sent: 30 June 2021 13:45
To:
SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

I do not have any 1/2" cuttoff steel but a piece of Armstrong brand 5/8" I have only measures 0.59 not 0.625. 

 

On Tuesday, June 29, 2021, 10:16:10 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

Looking online I find no suppliers of 7/16" but lots of 1/2".  With the manufactures listing the product as using 1/2" also makes it seem as something is afoul here.

 

On Tuesday, June 29, 2021, 10:02:43 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Agreed, but 1/2-inch won't fit in the tool in front of me.  I need to believe the tool in hand over a Armstrong and Williams catalog.

 

 

 

On Tuesday, June 29, 2021, 09:59:01 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

I would believe the Williams and Armstrong catalogues before E Bay

 

On Tuesday, June 29, 2021, 9:52:09 PM CDT, Andrei <calciu1@...> wrote:

 

 

It uses 7/16. See here

Typos are courtesy of autocorrect.

 


From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> on behalf of rlm_mcv via groups.io <rlm_mcv@...>
Sent: Tuesday, June 29, 2021 10:42:37 PM
To:
SouthBendLathe@groups.io <SouthBendLathe@groups.io>
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

 

 

On Tuesday, June 29, 2021, 9:36:34 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Unfortunately, no go with 1/2-inch. When I measure the opening I get 0.445 to 0.486. Maybe 7/16-inch. Can’t find those anywhere.


On Tuesday, June 29, 2021, 8:52 PM, wlw19958 <wlw-19958@...> wrote:

Hi There,

As far as I know, the 29 uses a 3/32" x 1/2" cut-off blade.  These
usually come about 4" to 4-1/2" long.  There are lots of them on eBay.

Good Luck!
-Blue Chips-
Webb


Re: Cutting Off / Parting

John
 

Bill

I think the bottom bevel is the critical element. Since the cam lock tends to push the blade down and into the face of the tool holder that bevel resists any tendency for the bottom of the blade to move outwards.

Cheers

John B

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of Bill in OKC too via groups.io
Sent: 30 June 2021 23:56
To: SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

I'd call that a trapezoid. I measured the HF parting tool from the HF small bits set I linked to previously, and I get 0.500" or so tall, and about .063" thick. That's pretty close to the marked sizes. It's also a rectangular shape, not the trapezoid your photo shows. It's going to take a lot of time on a surface grinder to reduce something like that to fit the holder.

Not having a surface grinder, I might be inclined to try a belt grinder, but...

Bill in OKC

William R. Meyers, MSgt, USAF(Ret.)


A human being should be able to change a diaper, plan an invasion,
butcher a hog, conn a ship, design a building, write a sonnet, balance
accounts, build a wall, set a bone, comfort the dying, take orders,
give orders, cooperate, act alone, solve equations, analyze a new
problem, pitch manure, program a computer, cook a tasty meal, fight
efficiently, die gallantly. Specialization is for insects.
LAZARUS LONG (Robert A. Heinlein)



On Wednesday, June 30, 2021, 01:50:01 AM CDT, John <reproturn@...> wrote:

 

 

OK I’m back.

I have an Armstrong No.20 tool and an Armstrong ½ inch blade.

Too hard to escribe the blade profile so I took pic – the blade in the No.20 tool has same profile.

Never tried to post a pic before so I hope it comes through.

 

The blade measure 12mm top to bottom, 2.25mm wide at the top and 1.55mm wide at the bottom.

Sorry if you likes inches but I find metric easier to use on the vernier.

The bottom is not flat but has a bevel to match the bevel in the tool holder. Likewise the top is only flat for about half the width then has a low bevel. This allows the blade to engage firmly with the cam lock on the tool.

Cheers

John B

 

 

 

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of G K via groups.io
Sent: 30 June 2021 14:06
To: SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

John,

 

I assume "not rectangular" implies wider at eh top of the blade than the bottom.  Could you check the dimensions of the blades you have?

 

Thanks,

 

Greg

 

On Tuesday, June 29, 2021, 10:56:43 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

John do your original 1/2" measure the full 1/2" or are they like my 5/8" a bit smaller?   If so what does the groove in your holder measure for height?

 

On Tuesday, June 29, 2021, 10:50:38 PM CDT, John <reproturn@...> wrote:

 

 

I have some original blades. They were not the regular rectangular kind that is mostly sold today. Armstrong and Williams made a tapered profile blade. If you look closely at the Williams catalogue extract you can see this.

Cheers

John B

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of rlm_mcv via groups.io
Sent: 30 June 2021 13:45
To:
SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

I do not have any 1/2" cuttoff steel but a piece of Armstrong brand 5/8" I have only measures 0.59 not 0.625. 

 

On Tuesday, June 29, 2021, 10:16:10 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

Looking online I find no suppliers of 7/16" but lots of 1/2".  With the manufactures listing the product as using 1/2" also makes it seem as something is afoul here.

 

On Tuesday, June 29, 2021, 10:02:43 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Agreed, but 1/2-inch won't fit in the tool in front of me.  I need to believe the tool in hand over a Armstrong and Williams catalog.

 

 

 

On Tuesday, June 29, 2021, 09:59:01 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

Inline image

I would believe the Williams and Armstrong catalogues before E Bay

 

On Tuesday, June 29, 2021, 9:52:09 PM CDT, Andrei <calciu1@...> wrote:

 

 

It uses 7/16. See here

Typos are courtesy of autocorrect.

 


From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> on behalf of rlm_mcv via groups.io <rlm_mcv@...>
Sent: Tuesday, June 29, 2021 10:42:37 PM
To:
SouthBendLathe@groups.io <SouthBendLathe@groups.io>
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

Inline image

 

 

On Tuesday, June 29, 2021, 9:36:34 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Unfortunately, no go with 1/2-inch. When I measure the opening I get 0.445 to 0.486. Maybe 7/16-inch. Can’t find those anywhere.

On Tuesday, June 29, 2021, 8:52 PM, wlw19958 <wlw-19958@...> wrote:

Hi There,

As far as I know, the 29 uses a 3/32" x 1/2" cut-off blade.  These
usually come about 4" to 4-1/2" long.  There are lots of them on eBay.

Good Luck!
-Blue Chips-
Webb


Re: Cutting Off / Parting

rlm_mcv
 

On Wednesday, June 30, 2021, 2:18:05 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:


Looks like it is called a "Johnson Style, Hollow Ground Cut Off Blade" No idea if the 1/2-inch blade is really 1/2-inch. or 12mm.

Inline image


On Wednesday, June 30, 2021, 01:49:59 AM CDT, John <reproturn@...> wrote:


OK I’m back.

I have an Armstrong No.20 tool and an Armstrong ½ inch blade.

Too hard to escribe the blade profile so I took pic – the blade in the No.20 tool has same profile.

Never tried to post a pic before so I hope it comes through.

 

The blade measure 12mm top to bottom, 2.25mm wide at the top and 1.55mm wide at the bottom.

Sorry if you likes inches but I find metric easier to use on the vernier.

The bottom is not flat but has a bevel to match the bevel in the tool holder. Likewise the top is only flat for about half the width then has a low bevel. This allows the blade to engage firmly with the cam lock on the tool.

Cheers

John B

 

 

 

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of G K via groups.io
Sent: 30 June 2021 14:06
To: SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

John,

 

I assume "not rectangular" implies wider at eh top of the blade than the bottom.  Could you check the dimensions of the blades you have?

 

Thanks,

 

Greg

 

On Tuesday, June 29, 2021, 10:56:43 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

John do your original 1/2" measure the full 1/2" or are they like my 5/8" a bit smaller?   If so what does the groove in your holder measure for height?

 

On Tuesday, June 29, 2021, 10:50:38 PM CDT, John <reproturn@...> wrote:

 

 

I have some original blades. They were not the regular rectangular kind that is mostly sold today. Armstrong and Williams made a tapered profile blade. If you look closely at the Williams catalogue extract you can see this.

Cheers

John B

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of rlm_mcv via groups.io
Sent: 30 June 2021 13:45
To:
SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

I do not have any 1/2" cuttoff steel but a piece of Armstrong brand 5/8" I have only measures 0.59 not 0.625. 

 

On Tuesday, June 29, 2021, 10:16:10 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

Looking online I find no suppliers of 7/16" but lots of 1/2".  With the manufactures listing the product as using 1/2" also makes it seem as something is afoul here.

 

On Tuesday, June 29, 2021, 10:02:43 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Agreed, but 1/2-inch won't fit in the tool in front of me.  I need to believe the tool in hand over a Armstrong and Williams catalog.

 

 

 

On Tuesday, June 29, 2021, 09:59:01 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

Inline image

I would believe the Williams and Armstrong catalogues before E Bay

 

On Tuesday, June 29, 2021, 9:52:09 PM CDT, Andrei <calciu1@...> wrote:

 

 

It uses 7/16. See here

Typos are courtesy of autocorrect.

 


From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> on behalf of rlm_mcv via groups.io <rlm_mcv@...>
Sent: Tuesday, June 29, 2021 10:42:37 PM
To:
SouthBendLathe@groups.io <SouthBendLathe@groups.io>
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

Inline image

 

 

On Tuesday, June 29, 2021, 9:36:34 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Unfortunately, no go with 1/2-inch. When I measure the opening I get 0.445 to 0.486. Maybe 7/16-inch. Can’t find those anywhere.


On Tuesday, June 29, 2021, 8:52 PM, wlw19958 <wlw-19958@...> wrote:

Hi There,

As far as I know, the 29 uses a 3/32" x 1/2" cut-off blade.  These
usually come about 4" to 4-1/2" long.  There are lots of them on eBay.

Good Luck!
-Blue Chips-
Webb


Re: Cutting Off / Parting

Andrei
 

Did not know you can flip the blade and cut with the narrower end. That is cool. 5% relief angle on each side. 


From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> on behalf of G K via groups.io <bug_hunter2000@...>
Sent: Wednesday, June 30, 2021 3:17 PM
To: southbendlathe@groups.io <southbendlathe@groups.io>; SouthBendLathe@groups.io <SouthBendLathe@groups.io>
Subject: Re: [SouthBendLathe] Cutting Off / Parting
 
Looks like it is called a "Johnson Style, Hollow Ground Cut Off Blade" No idea if the 1/2-inch blade is really 1/2-inch. or 12mm.

Inline image


On Wednesday, June 30, 2021, 01:49:59 AM CDT, John <reproturn@...> wrote:


OK I’m back.

I have an Armstrong No.20 tool and an Armstrong ½ inch blade.

Too hard to escribe the blade profile so I took pic – the blade in the No.20 tool has same profile.

Never tried to post a pic before so I hope it comes through.

 

The blade measure 12mm top to bottom, 2.25mm wide at the top and 1.55mm wide at the bottom.

Sorry if you likes inches but I find metric easier to use on the vernier.

The bottom is not flat but has a bevel to match the bevel in the tool holder. Likewise the top is only flat for about half the width then has a low bevel. This allows the blade to engage firmly with the cam lock on the tool.

Cheers

John B

 

 

 

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of G K via groups.io
Sent: 30 June 2021 14:06
To: SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

John,

 

I assume "not rectangular" implies wider at eh top of the blade than the bottom.  Could you check the dimensions of the blades you have?

 

Thanks,

 

Greg

 

On Tuesday, June 29, 2021, 10:56:43 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

John do your original 1/2" measure the full 1/2" or are they like my 5/8" a bit smaller?   If so what does the groove in your holder measure for height?

 

On Tuesday, June 29, 2021, 10:50:38 PM CDT, John <reproturn@...> wrote:

 

 

I have some original blades. They were not the regular rectangular kind that is mostly sold today. Armstrong and Williams made a tapered profile blade. If you look closely at the Williams catalogue extract you can see this.

Cheers

John B

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of rlm_mcv via groups.io
Sent: 30 June 2021 13:45
To:
SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

I do not have any 1/2" cuttoff steel but a piece of Armstrong brand 5/8" I have only measures 0.59 not 0.625. 

 

On Tuesday, June 29, 2021, 10:16:10 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

Looking online I find no suppliers of 7/16" but lots of 1/2".  With the manufactures listing the product as using 1/2" also makes it seem as something is afoul here.

 

On Tuesday, June 29, 2021, 10:02:43 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Agreed, but 1/2-inch won't fit in the tool in front of me.  I need to believe the tool in hand over a Armstrong and Williams catalog.

 

 

 

On Tuesday, June 29, 2021, 09:59:01 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

Inline image

I would believe the Williams and Armstrong catalogues before E Bay

 

On Tuesday, June 29, 2021, 9:52:09 PM CDT, Andrei <calciu1@...> wrote:

 

 

It uses 7/16. See here

Typos are courtesy of autocorrect.

 


From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> on behalf of rlm_mcv via groups.io <rlm_mcv@...>
Sent: Tuesday, June 29, 2021 10:42:37 PM
To:
SouthBendLathe@groups.io <SouthBendLathe@groups.io>
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

Inline image

 

 

On Tuesday, June 29, 2021, 9:36:34 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Unfortunately, no go with 1/2-inch. When I measure the opening I get 0.445 to 0.486. Maybe 7/16-inch. Can’t find those anywhere.


On Tuesday, June 29, 2021, 8:52 PM, wlw19958 <wlw-19958@...> wrote:

Hi There,

As far as I know, the 29 uses a 3/32" x 1/2" cut-off blade.  These
usually come about 4" to 4-1/2" long.  There are lots of them on eBay.

Good Luck!
-Blue Chips-
Webb


Re: Cutting Off / Parting

G K
 

Looks like it is called a "Johnson Style, Hollow Ground Cut Off Blade" No idea if the 1/2-inch blade is really 1/2-inch. or 12mm.

Inline image


On Wednesday, June 30, 2021, 01:49:59 AM CDT, John <reproturn@...> wrote:


OK I’m back.

I have an Armstrong No.20 tool and an Armstrong ½ inch blade.

Too hard to escribe the blade profile so I took pic – the blade in the No.20 tool has same profile.

Never tried to post a pic before so I hope it comes through.

 

The blade measure 12mm top to bottom, 2.25mm wide at the top and 1.55mm wide at the bottom.

Sorry if you likes inches but I find metric easier to use on the vernier.

The bottom is not flat but has a bevel to match the bevel in the tool holder. Likewise the top is only flat for about half the width then has a low bevel. This allows the blade to engage firmly with the cam lock on the tool.

Cheers

John B

 

 

 

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of G K via groups.io
Sent: 30 June 2021 14:06
To: SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

John,

 

I assume "not rectangular" implies wider at eh top of the blade than the bottom.  Could you check the dimensions of the blades you have?

 

Thanks,

 

Greg

 

On Tuesday, June 29, 2021, 10:56:43 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

John do your original 1/2" measure the full 1/2" or are they like my 5/8" a bit smaller?   If so what does the groove in your holder measure for height?

 

On Tuesday, June 29, 2021, 10:50:38 PM CDT, John <reproturn@...> wrote:

 

 

I have some original blades. They were not the regular rectangular kind that is mostly sold today. Armstrong and Williams made a tapered profile blade. If you look closely at the Williams catalogue extract you can see this.

Cheers

John B

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of rlm_mcv via groups.io
Sent: 30 June 2021 13:45
To:
SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

I do not have any 1/2" cuttoff steel but a piece of Armstrong brand 5/8" I have only measures 0.59 not 0.625. 

 

On Tuesday, June 29, 2021, 10:16:10 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

Looking online I find no suppliers of 7/16" but lots of 1/2".  With the manufactures listing the product as using 1/2" also makes it seem as something is afoul here.

 

On Tuesday, June 29, 2021, 10:02:43 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Agreed, but 1/2-inch won't fit in the tool in front of me.  I need to believe the tool in hand over a Armstrong and Williams catalog.

 

 

 

On Tuesday, June 29, 2021, 09:59:01 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

Inline image

I would believe the Williams and Armstrong catalogues before E Bay

 

On Tuesday, June 29, 2021, 9:52:09 PM CDT, Andrei <calciu1@...> wrote:

 

 

It uses 7/16. See here

Typos are courtesy of autocorrect.

 


From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> on behalf of rlm_mcv via groups.io <rlm_mcv@...>
Sent: Tuesday, June 29, 2021 10:42:37 PM
To:
SouthBendLathe@groups.io <SouthBendLathe@groups.io>
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

Inline image

 

 

On Tuesday, June 29, 2021, 9:36:34 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Unfortunately, no go with 1/2-inch. When I measure the opening I get 0.445 to 0.486. Maybe 7/16-inch. Can’t find those anywhere.


On Tuesday, June 29, 2021, 8:52 PM, wlw19958 <wlw-19958@...> wrote:

Hi There,

As far as I know, the 29 uses a 3/32" x 1/2" cut-off blade.  These
usually come about 4" to 4-1/2" long.  There are lots of them on eBay.

Good Luck!
-Blue Chips-
Webb


Re: Cutting Off / Parting

Bill in OKC too
 

I'd call that a trapezoid. I measured the HF parting tool from the HF small bits set I linked to previously, and I get 0.500" or so tall, and about .063" thick. That's pretty close to the marked sizes. It's also a rectangular shape, not the trapezoid your photo shows. It's going to take a lot of time on a surface grinder to reduce something like that to fit the holder.

Not having a surface grinder, I might be inclined to try a belt grinder, but...

Bill in OKC

William R. Meyers, MSgt, USAF(Ret.)


A human being should be able to change a diaper, plan an invasion,
butcher a hog, conn a ship, design a building, write a sonnet, balance
accounts, build a wall, set a bone, comfort the dying, take orders,
give orders, cooperate, act alone, solve equations, analyze a new
problem, pitch manure, program a computer, cook a tasty meal, fight
efficiently, die gallantly. Specialization is for insects.
LAZARUS LONG (Robert A. Heinlein)




On Wednesday, June 30, 2021, 01:50:01 AM CDT, John <reproturn@...> wrote:


OK I’m back.

I have an Armstrong No.20 tool and an Armstrong ½ inch blade.

Too hard to escribe the blade profile so I took pic – the blade in the No.20 tool has same profile.

Never tried to post a pic before so I hope it comes through.

 

The blade measure 12mm top to bottom, 2.25mm wide at the top and 1.55mm wide at the bottom.

Sorry if you likes inches but I find metric easier to use on the vernier.

The bottom is not flat but has a bevel to match the bevel in the tool holder. Likewise the top is only flat for about half the width then has a low bevel. This allows the blade to engage firmly with the cam lock on the tool.

Cheers

John B

 

 

 

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of G K via groups.io
Sent: 30 June 2021 14:06
To: SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

John,

 

I assume "not rectangular" implies wider at eh top of the blade than the bottom.  Could you check the dimensions of the blades you have?

 

Thanks,

 

Greg

 

On Tuesday, June 29, 2021, 10:56:43 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

John do your original 1/2" measure the full 1/2" or are they like my 5/8" a bit smaller?   If so what does the groove in your holder measure for height?

 

On Tuesday, June 29, 2021, 10:50:38 PM CDT, John <reproturn@...> wrote:

 

 

I have some original blades. They were not the regular rectangular kind that is mostly sold today. Armstrong and Williams made a tapered profile blade. If you look closely at the Williams catalogue extract you can see this.

Cheers

John B

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of rlm_mcv via groups.io
Sent: 30 June 2021 13:45
To:
SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

I do not have any 1/2" cuttoff steel but a piece of Armstrong brand 5/8" I have only measures 0.59 not 0.625. 

 

On Tuesday, June 29, 2021, 10:16:10 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

Looking online I find no suppliers of 7/16" but lots of 1/2".  With the manufactures listing the product as using 1/2" also makes it seem as something is afoul here.

 

On Tuesday, June 29, 2021, 10:02:43 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Agreed, but 1/2-inch won't fit in the tool in front of me.  I need to believe the tool in hand over a Armstrong and Williams catalog.

 

 

 

On Tuesday, June 29, 2021, 09:59:01 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

Inline image

I would believe the Williams and Armstrong catalogues before E Bay

 

On Tuesday, June 29, 2021, 9:52:09 PM CDT, Andrei <calciu1@...> wrote:

 

 

It uses 7/16. See here

Typos are courtesy of autocorrect.

 


From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> on behalf of rlm_mcv via groups.io <rlm_mcv@...>
Sent: Tuesday, June 29, 2021 10:42:37 PM
To:
SouthBendLathe@groups.io <SouthBendLathe@groups.io>
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

Inline image

 

 

On Tuesday, June 29, 2021, 9:36:34 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Unfortunately, no go with 1/2-inch. When I measure the opening I get 0.445 to 0.486. Maybe 7/16-inch. Can’t find those anywhere.


On Tuesday, June 29, 2021, 8:52 PM, wlw19958 <wlw-19958@...> wrote:

Hi There,

As far as I know, the 29 uses a 3/32" x 1/2" cut-off blade.  These
usually come about 4" to 4-1/2" long.  There are lots of them on eBay.

Good Luck!
-Blue Chips-
Webb


Re: Cutting Off / Parting

Bill in OKC too
 

The Harbor Freight package of small mixed bits has 1/16x1/2x4-1/2 parting blades. I have several packages, just checked.

https://www.harborfreight.com/5-piece-m2-high-speed-steel-mini-tool-bits-for-metalworking-lathes-40641.html

Bill in OKC

William R. Meyers, MSgt, USAF(Ret.)


A human being should be able to change a diaper, plan an invasion,
butcher a hog, conn a ship, design a building, write a sonnet, balance
accounts, build a wall, set a bone, comfort the dying, take orders,
give orders, cooperate, act alone, solve equations, analyze a new
problem, pitch manure, program a computer, cook a tasty meal, fight
efficiently, die gallantly. Specialization is for insects.
LAZARUS LONG (Robert A. Heinlein)




On Tuesday, June 29, 2021, 10:02:26 PM CDT, Andrei <calciu1@...> wrote:


Have you checked harbor freight?

Typos are courtesy of autocorrect.


From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> on behalf of G K via groups.io <bug_hunter2000@...>
Sent: Tuesday, June 29, 2021 10:58:13 PM
To: SouthBendLathe@groups.io <southbendlathe@groups.io>; SouthBendLathe@groups.io <SouthBendLathe@groups.io>
Subject: Re: [SouthBendLathe] Cutting Off / Parting
 
That's an Armstrong.  As far as I can tell, the only difference is the locking mechanism.  Any guesses where one could acquire a 7/16-inch blade?



On Tuesday, June 29, 2021, 09:52:09 PM CDT, Andrei <calciu1@...> wrote:


It uses 7/16. See here

Typos are courtesy of autocorrect.


From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> on behalf of rlm_mcv via groups.io <rlm_mcv@...>
Sent: Tuesday, June 29, 2021 10:42:37 PM
To: SouthBendLathe@groups.io <SouthBendLathe@groups.io>
Subject: Re: [SouthBendLathe] Cutting Off / Parting
 
Inline image


On Tuesday, June 29, 2021, 9:36:34 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:


Unfortunately, no go with 1/2-inch. When I measure the opening I get 0.445 to 0.486. Maybe 7/16-inch. Can’t find those anywhere.




On Tuesday, June 29, 2021, 8:52 PM, wlw19958 <wlw-19958@...> wrote:

Hi There,

As far as I know, the 29 uses a 3/32" x 1/2" cut-off blade.  These
usually come about 4" to 4-1/2" long.  There are lots of them on eBay.

Good Luck!
-Blue Chips-
Webb


Re: Cutting Off / Parting

rlm_mcv
 

Looking at the old catalogs the right and left cutters used different profiles also.

On Wednesday, June 30, 2021, 7:49:40 AM CDT, G K via groups.io <bug_hunter2000@...> wrote:


John,

Thanks a lot.  That sounds like it will fit.  12mm=0.4724

Seems like I need to find a 1/2-inch blade with the "old-school" profile.

Back to Google.

Greg

On Wednesday, June 30, 2021, 01:49:59 AM CDT, John <reproturn@...> wrote:


OK I’m back.

I have an Armstrong No.20 tool and an Armstrong ½ inch blade.

Too hard to escribe the blade profile so I took pic – the blade in the No.20 tool has same profile.

Never tried to post a pic before so I hope it comes through.

 

The blade measure 12mm top to bottom, 2.25mm wide at the top and 1.55mm wide at the bottom.

Sorry if you likes inches but I find metric easier to use on the vernier.

The bottom is not flat but has a bevel to match the bevel in the tool holder. Likewise the top is only flat for about half the width then has a low bevel. This allows the blade to engage firmly with the cam lock on the tool.

Cheers

John B

 

 

 

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of G K via groups.io
Sent: 30 June 2021 14:06
To: SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

John,

 

I assume "not rectangular" implies wider at eh top of the blade than the bottom.  Could you check the dimensions of the blades you have?

 

Thanks,

 

Greg

 

On Tuesday, June 29, 2021, 10:56:43 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

John do your original 1/2" measure the full 1/2" or are they like my 5/8" a bit smaller?   If so what does the groove in your holder measure for height?

 

On Tuesday, June 29, 2021, 10:50:38 PM CDT, John <reproturn@...> wrote:

 

 

I have some original blades. They were not the regular rectangular kind that is mostly sold today. Armstrong and Williams made a tapered profile blade. If you look closely at the Williams catalogue extract you can see this.

Cheers

John B

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of rlm_mcv via groups.io
Sent: 30 June 2021 13:45
To:
SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

I do not have any 1/2" cuttoff steel but a piece of Armstrong brand 5/8" I have only measures 0.59 not 0.625. 

 

On Tuesday, June 29, 2021, 10:16:10 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

Looking online I find no suppliers of 7/16" but lots of 1/2".  With the manufactures listing the product as using 1/2" also makes it seem as something is afoul here.

 

On Tuesday, June 29, 2021, 10:02:43 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Agreed, but 1/2-inch won't fit in the tool in front of me.  I need to believe the tool in hand over a Armstrong and Williams catalog.

 

 

 

On Tuesday, June 29, 2021, 09:59:01 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

Inline image

I would believe the Williams and Armstrong catalogues before E Bay

 

On Tuesday, June 29, 2021, 9:52:09 PM CDT, Andrei <calciu1@...> wrote:

 

 

It uses 7/16. See here

Typos are courtesy of autocorrect.

 


From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> on behalf of rlm_mcv via groups.io <rlm_mcv@...>
Sent: Tuesday, June 29, 2021 10:42:37 PM
To:
SouthBendLathe@groups.io <SouthBendLathe@groups.io>
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

Inline image

 

 

On Tuesday, June 29, 2021, 9:36:34 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Unfortunately, no go with 1/2-inch. When I measure the opening I get 0.445 to 0.486. Maybe 7/16-inch. Can’t find those anywhere.


On Tuesday, June 29, 2021, 8:52 PM, wlw19958 <wlw-19958@...> wrote:

Hi There,

As far as I know, the 29 uses a 3/32" x 1/2" cut-off blade.  These
usually come about 4" to 4-1/2" long.  There are lots of them on eBay.

Good Luck!
-Blue Chips-
Webb


Re: Cutting Off / Parting

G K
 

John,

Thanks a lot.  That sounds like it will fit.  12mm=0.4724

Seems like I need to find a 1/2-inch blade with the "old-school" profile.

Back to Google.

Greg

On Wednesday, June 30, 2021, 01:49:59 AM CDT, John <reproturn@...> wrote:


OK I’m back.

I have an Armstrong No.20 tool and an Armstrong ½ inch blade.

Too hard to escribe the blade profile so I took pic – the blade in the No.20 tool has same profile.

Never tried to post a pic before so I hope it comes through.

 

The blade measure 12mm top to bottom, 2.25mm wide at the top and 1.55mm wide at the bottom.

Sorry if you likes inches but I find metric easier to use on the vernier.

The bottom is not flat but has a bevel to match the bevel in the tool holder. Likewise the top is only flat for about half the width then has a low bevel. This allows the blade to engage firmly with the cam lock on the tool.

Cheers

John B

 

 

 

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of G K via groups.io
Sent: 30 June 2021 14:06
To: SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

John,

 

I assume "not rectangular" implies wider at eh top of the blade than the bottom.  Could you check the dimensions of the blades you have?

 

Thanks,

 

Greg

 

On Tuesday, June 29, 2021, 10:56:43 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

John do your original 1/2" measure the full 1/2" or are they like my 5/8" a bit smaller?   If so what does the groove in your holder measure for height?

 

On Tuesday, June 29, 2021, 10:50:38 PM CDT, John <reproturn@...> wrote:

 

 

I have some original blades. They were not the regular rectangular kind that is mostly sold today. Armstrong and Williams made a tapered profile blade. If you look closely at the Williams catalogue extract you can see this.

Cheers

John B

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of rlm_mcv via groups.io
Sent: 30 June 2021 13:45
To:
SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

I do not have any 1/2" cuttoff steel but a piece of Armstrong brand 5/8" I have only measures 0.59 not 0.625. 

 

On Tuesday, June 29, 2021, 10:16:10 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

Looking online I find no suppliers of 7/16" but lots of 1/2".  With the manufactures listing the product as using 1/2" also makes it seem as something is afoul here.

 

On Tuesday, June 29, 2021, 10:02:43 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Agreed, but 1/2-inch won't fit in the tool in front of me.  I need to believe the tool in hand over a Armstrong and Williams catalog.

 

 

 

On Tuesday, June 29, 2021, 09:59:01 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

Inline image

I would believe the Williams and Armstrong catalogues before E Bay

 

On Tuesday, June 29, 2021, 9:52:09 PM CDT, Andrei <calciu1@...> wrote:

 

 

It uses 7/16. See here

Typos are courtesy of autocorrect.

 


From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> on behalf of rlm_mcv via groups.io <rlm_mcv@...>
Sent: Tuesday, June 29, 2021 10:42:37 PM
To:
SouthBendLathe@groups.io <SouthBendLathe@groups.io>
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

Inline image

 

 

On Tuesday, June 29, 2021, 9:36:34 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Unfortunately, no go with 1/2-inch. When I measure the opening I get 0.445 to 0.486. Maybe 7/16-inch. Can’t find those anywhere.


On Tuesday, June 29, 2021, 8:52 PM, wlw19958 <wlw-19958@...> wrote:

Hi There,

As far as I know, the 29 uses a 3/32" x 1/2" cut-off blade.  These
usually come about 4" to 4-1/2" long.  There are lots of them on eBay.

Good Luck!
-Blue Chips-
Webb


Re: Cutting Off / Parting

ww_big_al
 

Use a mill or file and widen the slot to 1/2'. That will make it a standard sze.

Al

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of G K via groups.io
Sent: Tuesday, June 29, 2021 11:02 PM
To: SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

Agreed, but 1/2-inch won't fit in the tool in front of me.  I need to believe the tool in hand over a Armstrong and Williams catalog.

 

 

 


Re: Cutting Off / Parting

John
 

OK I’m back.

I have an Armstrong No.20 tool and an Armstrong ½ inch blade.

Too hard to escribe the blade profile so I took pic – the blade in the No.20 tool has same profile.

Never tried to post a pic before so I hope it comes through.

 

The blade measure 12mm top to bottom, 2.25mm wide at the top and 1.55mm wide at the bottom.

Sorry if you likes inches but I find metric easier to use on the vernier.

The bottom is not flat but has a bevel to match the bevel in the tool holder. Likewise the top is only flat for about half the width then has a low bevel. This allows the blade to engage firmly with the cam lock on the tool.

Cheers

John B

 

 

 

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of G K via groups.io
Sent: 30 June 2021 14:06
To: SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

John,

 

I assume "not rectangular" implies wider at eh top of the blade than the bottom.  Could you check the dimensions of the blades you have?

 

Thanks,

 

Greg

 

On Tuesday, June 29, 2021, 10:56:43 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

John do your original 1/2" measure the full 1/2" or are they like my 5/8" a bit smaller?   If so what does the groove in your holder measure for height?

 

On Tuesday, June 29, 2021, 10:50:38 PM CDT, John <reproturn@...> wrote:

 

 

I have some original blades. They were not the regular rectangular kind that is mostly sold today. Armstrong and Williams made a tapered profile blade. If you look closely at the Williams catalogue extract you can see this.

Cheers

John B

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of rlm_mcv via groups.io
Sent: 30 June 2021 13:45
To:
SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

I do not have any 1/2" cuttoff steel but a piece of Armstrong brand 5/8" I have only measures 0.59 not 0.625. 

 

On Tuesday, June 29, 2021, 10:16:10 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

Looking online I find no suppliers of 7/16" but lots of 1/2".  With the manufactures listing the product as using 1/2" also makes it seem as something is afoul here.

 

On Tuesday, June 29, 2021, 10:02:43 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Agreed, but 1/2-inch won't fit in the tool in front of me.  I need to believe the tool in hand over a Armstrong and Williams catalog.

 

 

 

On Tuesday, June 29, 2021, 09:59:01 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

Inline image

I would believe the Williams and Armstrong catalogues before E Bay

 

On Tuesday, June 29, 2021, 9:52:09 PM CDT, Andrei <calciu1@...> wrote:

 

 

It uses 7/16. See here

Typos are courtesy of autocorrect.

 


From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> on behalf of rlm_mcv via groups.io <rlm_mcv@...>
Sent: Tuesday, June 29, 2021 10:42:37 PM
To:
SouthBendLathe@groups.io <SouthBendLathe@groups.io>
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

Inline image

 

 

On Tuesday, June 29, 2021, 9:36:34 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Unfortunately, no go with 1/2-inch. When I measure the opening I get 0.445 to 0.486. Maybe 7/16-inch. Can’t find those anywhere.


On Tuesday, June 29, 2021, 8:52 PM, wlw19958 <wlw-19958@...> wrote:

Hi There,

As far as I know, the 29 uses a 3/32" x 1/2" cut-off blade.  These
usually come about 4" to 4-1/2" long.  There are lots of them on eBay.

Good Luck!
-Blue Chips-
Webb


Re: Cutting Off / Parting

John
 

I’ll run the measuring equipment over them and let you know.

Cheers

John B

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of G K via groups.io
Sent: 30 June 2021 14:06
To: SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

John,

 

I assume "not rectangular" implies wider at eh top of the blade than the bottom.  Could you check the dimensions of the blades you have?

 

Thanks,

 

Greg

 

On Tuesday, June 29, 2021, 10:56:43 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

John do your original 1/2" measure the full 1/2" or are they like my 5/8" a bit smaller?   If so what does the groove in your holder measure for height?

 

On Tuesday, June 29, 2021, 10:50:38 PM CDT, John <reproturn@...> wrote:

 

 

I have some original blades. They were not the regular rectangular kind that is mostly sold today. Armstrong and Williams made a tapered profile blade. If you look closely at the Williams catalogue extract you can see this.

Cheers

John B

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of rlm_mcv via groups.io
Sent: 30 June 2021 13:45
To: SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

I do not have any 1/2" cuttoff steel but a piece of Armstrong brand 5/8" I have only measures 0.59 not 0.625. 

 

On Tuesday, June 29, 2021, 10:16:10 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

Looking online I find no suppliers of 7/16" but lots of 1/2".  With the manufactures listing the product as using 1/2" also makes it seem as something is afoul here.

 

On Tuesday, June 29, 2021, 10:02:43 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Agreed, but 1/2-inch won't fit in the tool in front of me.  I need to believe the tool in hand over a Armstrong and Williams catalog.

 

 

 

On Tuesday, June 29, 2021, 09:59:01 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

Inline image

I would believe the Williams and Armstrong catalogues before E Bay

 

On Tuesday, June 29, 2021, 9:52:09 PM CDT, Andrei <calciu1@...> wrote:

 

 

It uses 7/16. See here

Typos are courtesy of autocorrect.

 


From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> on behalf of rlm_mcv via groups.io <rlm_mcv@...>
Sent: Tuesday, June 29, 2021 10:42:37 PM
To:
SouthBendLathe@groups.io <SouthBendLathe@groups.io>
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

Inline image

 

 

On Tuesday, June 29, 2021, 9:36:34 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Unfortunately, no go with 1/2-inch. When I measure the opening I get 0.445 to 0.486. Maybe 7/16-inch. Can’t find those anywhere.


On Tuesday, June 29, 2021, 8:52 PM, wlw19958 <wlw-19958@...> wrote:

Hi There,

As far as I know, the 29 uses a 3/32" x 1/2" cut-off blade.  These
usually come about 4" to 4-1/2" long.  There are lots of them on eBay.

Good Luck!
-Blue Chips-
Webb


Re: Cutting Off / Parting

G K
 

John,

I assume "not rectangular" implies wider at eh top of the blade than the bottom.  Could you check the dimensions of the blades you have?

Thanks,

Greg

On Tuesday, June 29, 2021, 10:56:43 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:


John do your original 1/2" measure the full 1/2" or are they like my 5/8" a bit smaller?   If so what does the groove in your holder measure for height?

On Tuesday, June 29, 2021, 10:50:38 PM CDT, John <reproturn@...> wrote:


I have some original blades. They were not the regular rectangular kind that is mostly sold today. Armstrong and Williams made a tapered profile blade. If you look closely at the Williams catalogue extract you can see this.

Cheers

John B

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of rlm_mcv via groups.io
Sent: 30 June 2021 13:45
To: SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

I do not have any 1/2" cuttoff steel but a piece of Armstrong brand 5/8" I have only measures 0.59 not 0.625. 

 

On Tuesday, June 29, 2021, 10:16:10 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

Looking online I find no suppliers of 7/16" but lots of 1/2".  With the manufactures listing the product as using 1/2" also makes it seem as something is afoul here.

 

On Tuesday, June 29, 2021, 10:02:43 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Agreed, but 1/2-inch won't fit in the tool in front of me.  I need to believe the tool in hand over a Armstrong and Williams catalog.

 

 

 

On Tuesday, June 29, 2021, 09:59:01 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

Inline image

I would believe the Williams and Armstrong catalogues before E Bay

 

On Tuesday, June 29, 2021, 9:52:09 PM CDT, Andrei <calciu1@...> wrote:

 

 

It uses 7/16. See here

Typos are courtesy of autocorrect.

 


From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> on behalf of rlm_mcv via groups.io <rlm_mcv@...>
Sent: Tuesday, June 29, 2021 10:42:37 PM
To:
SouthBendLathe@groups.io <SouthBendLathe@groups.io>
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

Inline image

 

 

On Tuesday, June 29, 2021, 9:36:34 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Unfortunately, no go with 1/2-inch. When I measure the opening I get 0.445 to 0.486. Maybe 7/16-inch. Can’t find those anywhere.



On Tuesday, June 29, 2021, 8:52 PM, wlw19958 <wlw-19958@...> wrote:

Hi There,

As far as I know, the 29 uses a 3/32" x 1/2" cut-off blade.  These
usually come about 4" to 4-1/2" long.  There are lots of them on eBay.

Good Luck!
-Blue Chips-
Webb


Re: Cutting Off / Parting

rlm_mcv
 

John do your original 1/2" measure the full 1/2" or are they like my 5/8" a bit smaller?   If so what does the groove in your holder measure for height?

On Tuesday, June 29, 2021, 10:50:38 PM CDT, John <reproturn@...> wrote:


I have some original blades. They were not the regular rectangular kind that is mostly sold today. Armstrong and Williams made a tapered profile blade. If you look closely at the Williams catalogue extract you can see this.

Cheers

John B

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of rlm_mcv via groups.io
Sent: 30 June 2021 13:45
To: SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

I do not have any 1/2" cuttoff steel but a piece of Armstrong brand 5/8" I have only measures 0.59 not 0.625. 

 

On Tuesday, June 29, 2021, 10:16:10 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

Looking online I find no suppliers of 7/16" but lots of 1/2".  With the manufactures listing the product as using 1/2" also makes it seem as something is afoul here.

 

On Tuesday, June 29, 2021, 10:02:43 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Agreed, but 1/2-inch won't fit in the tool in front of me.  I need to believe the tool in hand over a Armstrong and Williams catalog.

 

 

 

On Tuesday, June 29, 2021, 09:59:01 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

Inline image

I would believe the Williams and Armstrong catalogues before E Bay

 

On Tuesday, June 29, 2021, 9:52:09 PM CDT, Andrei <calciu1@...> wrote:

 

 

It uses 7/16. See here

Typos are courtesy of autocorrect.

 


From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> on behalf of rlm_mcv via groups.io <rlm_mcv@...>
Sent: Tuesday, June 29, 2021 10:42:37 PM
To:
SouthBendLathe@groups.io <SouthBendLathe@groups.io>
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

Inline image

 

 

On Tuesday, June 29, 2021, 9:36:34 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Unfortunately, no go with 1/2-inch. When I measure the opening I get 0.445 to 0.486. Maybe 7/16-inch. Can’t find those anywhere.



On Tuesday, June 29, 2021, 8:52 PM, wlw19958 <wlw-19958@...> wrote:

Hi There,

As far as I know, the 29 uses a 3/32" x 1/2" cut-off blade.  These
usually come about 4" to 4-1/2" long.  There are lots of them on eBay.

Good Luck!
-Blue Chips-
Webb


Re: Cutting Off / Parting

John
 

I have some original blades. They were not the regular rectangular kind that is mostly sold today. Armstrong and Williams made a tapered profile blade. If you look closely at the Williams catalogue extract you can see this.

Cheers

John B

 

From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> On Behalf Of rlm_mcv via groups.io
Sent: 30 June 2021 13:45
To: SouthBendLathe@groups.io
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

I do not have any 1/2" cuttoff steel but a piece of Armstrong brand 5/8" I have only measures 0.59 not 0.625. 

 

On Tuesday, June 29, 2021, 10:16:10 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

Looking online I find no suppliers of 7/16" but lots of 1/2".  With the manufactures listing the product as using 1/2" also makes it seem as something is afoul here.

 

On Tuesday, June 29, 2021, 10:02:43 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Agreed, but 1/2-inch won't fit in the tool in front of me.  I need to believe the tool in hand over a Armstrong and Williams catalog.

 

 

 

On Tuesday, June 29, 2021, 09:59:01 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:

 

 

Inline image

I would believe the Williams and Armstrong catalogues before E Bay

 

On Tuesday, June 29, 2021, 9:52:09 PM CDT, Andrei <calciu1@...> wrote:

 

 

It uses 7/16. See here

Typos are courtesy of autocorrect.

 


From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> on behalf of rlm_mcv via groups.io <rlm_mcv@...>
Sent: Tuesday, June 29, 2021 10:42:37 PM
To:
SouthBendLathe@groups.io <SouthBendLathe@groups.io>
Subject: Re: [SouthBendLathe] Cutting Off / Parting

 

Inline image

 

 

On Tuesday, June 29, 2021, 9:36:34 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:

 

 

Unfortunately, no go with 1/2-inch. When I measure the opening I get 0.445 to 0.486. Maybe 7/16-inch. Can’t find those anywhere.



On Tuesday, June 29, 2021, 8:52 PM, wlw19958 <wlw-19958@...> wrote:

Hi There,

As far as I know, the 29 uses a 3/32" x 1/2" cut-off blade.  These
usually come about 4" to 4-1/2" long.  There are lots of them on eBay.

Good Luck!
-Blue Chips-
Webb


Re: Cutting Off / Parting

rlm_mcv
 

I do not have any 1/2" cuttoff steel but a piece of Armstrong brand 5/8" I have only measures 0.59 not 0.625. 

On Tuesday, June 29, 2021, 10:16:10 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:


Looking online I find no suppliers of 7/16" but lots of 1/2".  With the manufactures listing the product as using 1/2" also makes it seem as something is afoul here.

On Tuesday, June 29, 2021, 10:02:43 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:


Agreed, but 1/2-inch won't fit in the tool in front of me.  I need to believe the tool in hand over a Armstrong and Williams catalog.



On Tuesday, June 29, 2021, 09:59:01 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:


Inline image
I would believe the Williams and Armstrong catalogues before E Bay

On Tuesday, June 29, 2021, 9:52:09 PM CDT, Andrei <calciu1@...> wrote:


It uses 7/16. See here

Typos are courtesy of autocorrect.


From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> on behalf of rlm_mcv via groups.io <rlm_mcv@...>
Sent: Tuesday, June 29, 2021 10:42:37 PM
To: SouthBendLathe@groups.io <SouthBendLathe@groups.io>
Subject: Re: [SouthBendLathe] Cutting Off / Parting
 
Inline image


On Tuesday, June 29, 2021, 9:36:34 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:


Unfortunately, no go with 1/2-inch. When I measure the opening I get 0.445 to 0.486. Maybe 7/16-inch. Can’t find those anywhere.




On Tuesday, June 29, 2021, 8:52 PM, wlw19958 <wlw-19958@...> wrote:

Hi There,

As far as I know, the 29 uses a 3/32" x 1/2" cut-off blade.  These
usually come about 4" to 4-1/2" long.  There are lots of them on eBay.

Good Luck!
-Blue Chips-
Webb


Re: Cutting Off / Parting

Davis Johnson
 

Can you  find 12mm? That would be .472, about seven and an 'alf sixteenths.

On 6/29/21 11:15 PM, rlm_mcv via groups.io wrote:
Looking online I find no suppliers of 7/16" but lots of 1/2".  With the manufactures listing the product as using 1/2" also makes it seem as something is afoul here.

On Tuesday, June 29, 2021, 10:02:43 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:


Agreed, but 1/2-inch won't fit in the tool in front of me.  I need to believe the tool in hand over a Armstrong and Williams catalog.



On Tuesday, June 29, 2021, 09:59:01 PM CDT, rlm_mcv via groups.io <rlm_mcv@...> wrote:



I would believe the Williams and Armstrong catalogues before E Bay

On Tuesday, June 29, 2021, 9:52:09 PM CDT, Andrei <calciu1@...> wrote:


It uses 7/16. See here

Typos are courtesy of autocorrect.


From: SouthBendLathe@groups.io <SouthBendLathe@groups.io> on behalf of rlm_mcv via groups.io <rlm_mcv@...>
Sent: Tuesday, June 29, 2021 10:42:37 PM
To: SouthBendLathe@groups.io <SouthBendLathe@groups.io>
Subject: Re: [SouthBendLathe] Cutting Off / Parting
 



On Tuesday, June 29, 2021, 9:36:34 PM CDT, G K via groups.io <bug_hunter2000@...> wrote:


Unfortunately, no go with 1/2-inch. When I measure the opening I get 0.445 to 0.486. Maybe 7/16-inch. Can’t find those anywhere.




On Tuesday, June 29, 2021, 8:52 PM, wlw19958 <wlw-19958@...> wrote:

Hi There,

As far as I know, the 29 uses a 3/32" x 1/2" cut-off blade.  These
usually come about 4" to 4-1/2" long.  There are lots of them on eBay.

Good Luck!
-Blue Chips-
Webb

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