Tom, I was reading the write up from Steve S about the vac chuck and he mentioned the rotary adapter you made for him. I'm curious about one for a Powermatic 3520B. Can you forward me some more details - cost, how it works, etc. In looking at Steve's pictures it looks like you don't have to remove the hand wheel - just push the part with the rubber O-ring into the spindle. Am I correct. This is one of the last pieces of the puzzle for me. Thanks for the help. Jim Evans