12" 3 Jaw Plain Back Zero-Set Lathe Chuck (3900-4582)
9 piece top jaws can be reversed for clamping and jamming.
Run true "0" set.
Hardened and ground to the highest T.I.R. with 0.0005" repeatability on duplicate parts.
Provides increased gripping force with less jaw distortion.
Opposing adjusting screws for "dead true" accuracy.
Fine adjustment.
Semi-steel body.
Chuck body is made of high quality cast iron.
All guide ways and bearing surfaces are precisely machined.
Scroll plate is drop forged of fine alloy steel and carefully case hardened.
Thread flanks are ground on both sides.
The jaws teeth and guide ways are hardened and fully ground on both sides.
Pinions are also hardened and ground.
6 M12 mounting screws are included.
Shipping Weight: 133 lbs
Many metalworking products contain metals that are included in
the latest Prop 65 warning. Exposure to the elements can be
harmful. May cause cancer and reproductive harm.
