Thread M33 3.5. THIS SET WILL FIT LATHES WITH THRESDS OF M33 3.5 OR 1"12TPI. 4 Jaw Geared Scroll Chuck Complete Boxed Set 95mm = 3.75". 4 Jaw Geared Scroll Chuck Set. 1 pc 4 Jaw Geared Scroll Chuck. 1 pc Wood Screw Chuck.
eBay