four" (four inch) 3 Jaw Precision Self Centering Lathe Chuck with 2 sets jaw - DiZiWoods Store
Excessive precision self-centering design. Superior gripping pressure to satisfy precision machining calls for. Flimsy elements are particularly engineered by quenching course of to reinforce sturdiness. Inner Jaw Clamping Vary: zero.0787" (2mm) -1.1811" (30mm). Inner Jaw Jamming Vary: 1.1811" (30mm) - 3.5433" (90mm). Exterior Jaw Clamping Vary: 1.1811" (30mm) - 3.1496" (80mm). Accuracy: zero.002"(examined vertical Chuck Physique Thickness: 2". Center Through Gap Dia.: zero.8661". Bolt Circle Dia.:3.3071". Mounting Thread: 3-M8. RPM: four,200.