[racer3j]

Good point! I have the huge 1/2" Milwaukee Drill that will break a wrist- that is what I drove those reamers with back then. It drove them in so well that you had to be careful not to expand too deep- you would lose the pressure fit. I might try my drillpress. It is a big old 1/2" Craftsman- don't know if I can slow it down enough. This will be a bit tougher because those were enlarging already tapered holes- if I step drill and use care it might go alright. Pilot hole, patience and coolant for this, then.jet