[Helix22]

Hi I am looking for a 2 jaw chuck. Self centering, where both jaws move at same time when tightening, not independant like a 4 jaw chuck where each one moves independantly. I want it to be 'buckable' where runout can be adjusted (Buck Chuck, Set-Tru, Zero-Set, Accu-chuck etc). Must be 8 inch and be able to have soft jaws. Anything like this exist? (the one in attached picture is 2 jaw, 8 inch and self centering but not 'buckable') Going on an A2-5 spindle.

If I cant get one is there a way to machine an adapter plate or modify the chuck with 4 centering screws?

THANK YOU.

[txcncman]

Get a 6 jaw scroll chuck and take 4 of the jaws out?

There is a way to machine any machined part.

[Helix22]

Yes I was thinking along sililar lines but was thinking of using a self centering 4 jaw. Still I would like a self centering 2 jaw that is adjustable for runout.