Can’t remember where I got the iron from sorry, it was about two years ago, but the tips it uses are these: https://www.amazon.co.uk/Soldering-Tip-Conicle-Solder-KD-M-1/dp/B007EWKMUA
The end of the tip is rounded and seems to work OK with even the smallest SMD Rs/Cs and gullwing chips etc, and it is OK for leadless chips, although something a bit more angular would be better. I’ve had one tip get stuck to the element and had to slice it off with a Dremel, and one of the five or so I’ve used so far needed dressing a bit to remove a sharp corner.
It has a digital temp display, but no backlight, and it is a pain to use as a result. I keep leaving it switched on overnight because I can’t tell it is on or off….
Not exactly a Weller, but then it isn’t Weller pricing…
where did you fond the 0.5 mm tip and for which iron , Neil ?