Originally Posted by
RezDog
My method is to file a flat spot, take a split point drill bit in a pin vice and start my hole, to the drill press with the center drill and hold the razor in my hand and push the pin up to the spinning bit. By hand holding it allows me the ability to move the hole slightly if needed. As the hole gets very close to the collar I stop and finish by hand with the pin vice. If you go too far on the center bit there is a 50/50 chance of the collar surviving. In my razor work area I have a small counter top drill press that does all I need it to do and they are not a big expense but super duper handy.