Since Lathesmith has retired, the source for jamb nuts with set screws has dried up. Is anyone here making their own? I tried a number of times at tapping the 8-32 thread with the standard pointed tap on my drill press. By the time I get "some" threads cut, there's not enough threads to hold a set screw to lock the nut on a Star punch. The tapered end of a bottom tap is much shorter but I don't have one. Is there anyone who would want to share their process?