Centering Parts In A Drillpress

[rgsparber]

Rick

That is a good hint. If one is lucky you don't even have to make a special part to do the centering. Just put a step drill bit in the chuck.

I just tried your idea and it works great! A limitation that is easily overcome is that for larger diameters, the drill bottoms out in the vise. It would be easy to make a stepped diameter tool with less rise per diameter. The one you show has a 0.1" rise followed by a 0.1" transition. The custom tool could have a 0.05" rise and no transition. This would let you go from 3/8" up to 1" in 0.3" of rise. Alternately, go with a 0.1" rise and make one tool that goes from 3/8" to 5/8" and the second tool going from 3/4" to 1".

Rick