John Niemeyer <jniemeyer@...>
I’ve needed the reamer for EN87’s in my Blackstone equipment. HOn3 kits from PSC, Grandt Line Blackstone make their coupler pockets to fit Kadee 714 couplers. The 714 has a slightly smaller mounting pin, so if you are installing Sergent EN87 for anything designed to fit the Kadee 711, 713 & 714, you will need the reamer. Some Sergent narrow shank couplers come with the Accumate draft gear boxes.
I haven't bought the reamer, but I am considering it when I place another order for couplers.