Go the real easy way. HF has what you want for $10. It's a great 1/2"
Jacobs chuck with a #2MT.
http://www.harborfreight.com/cpi/cta...emnumber=42340

I saw that, and figured that for $10 it couldn't be any better than what I
had - but since what I have won't work, I'm going to give that a shot. It's
good to hear that other people have had good luck with it.

steve