- Joined
- Mar 12, 2013
- Messages
- 302
I was installing limit switches on my mill and had to tap some holes with a 4-40 tap. It was in a area that I couldn't get to with any of my tap wrenches. I had a No.0 Jacob chuck that I pickd up for $2.00. I took a piece of aluminum round and bore the end to accept the chuck shank .The chuck shank is held with a couple set screws. Works good