Bison 7-866-1200 , 12" 3 Jaw Set-Tru Lathe Chuck
Model #: STC3-12
- Chuck Size: 12"
- Hole Size: 4.05"
- Max R.P.M: 2000
- Number of Jaws: 3
- 2-piece reversible jaws.
Steel Body. Scroll and jaws hardened and ground.
Three hardened and ground pinions.
Four micro adjustment screws provide .0005 T.I.R. repeatability.
You must mount the set-tru chuck on a set-tru back plate to use the adjustment feature.