Originally Posted by
Euclid440
I do like Mike, except I punch a center divot on the flat, with a small 1/8 in Philips screw driver. that I sharpened and hardened. Pins are soft so it does not need to be that hard.
I start the hole with a 1/16 in single flute, center drill bit, then drill with a sharp 1/16 in drill bit, center drills are cheap and so are1/16th in. drill bits buy a bunch.
I do lite taps on the drill press with a wood backer block with a divot for the back pin, don’t drill the divot in the wood too deep so it will keep the pin from spinning while under pressure. Drill at the slowest speed.
Just a few taps and you are done, pin vise also works quickly, with a sharp drill bit.
Lift the scale off the drilled pin, do not try to punch it through. If the pin is bent, you will blow out the back scale. If bent lift off the blade and cut the bent pin off to remove from the back scale.
I have a tin of collars but usually make new, doming Micro Fastener washers.