Features 1、The maximum clamping range reached 100mm/3.9in, and the clamping is stable, does not shake. 2、Adopt special quenching treatment, it effectively improves the wear resistance and service life. 3、The chuck has high accuray, and the measured dial indicator jumps within 0.02mm. 4、4‑jaw designed, self‑centering, easy to operate, high working efficiency. 5、Made of hgih quality iron material, sturdy and durable, which has long service life. Specification Condition: 100% Brand New Item Type: Lathe Chuck Material: Iron Color: As picture shown Overall Size: Approx. 10.5 x 5.5cm/4.1 x 2.2in Outer Diameter: Approx. 100mm/3.9in D1: Approx. 72mm/2.8in D2: Approx. 84mm/3.3in Passage: Approx. 22mm/0.9in Total Height: Approx. 75mm/3in Height Excluding Jaw: Approx. 55mm/2.2in h: Approx. 3.5mm/0.1in z-d: Approx. 3-M8 (Please Check with the Picture) Package List 1 x Lathe Chuck 4 x Jaw 3 x Screw 1 x Chuck Wrench