[Four-claw design]: Four-claw design, high work efficiency, compact size and easy to use. Wide clamping range. High precision, high efficiency, wear resistant. Independent center adjustment, suitable for machining 【Zinc Alloy Lathe Chuck】: Made of high quality zinc alloy for maximum strength and durability. Both sides of the chuck are hardened for longer life and better sealing. independent regulation Central position, suitable for special treatments, higher clamping force. 【Good wear resistance】: The four-jaw lathe chuck is made of high quality materials, which are wear-resistant, wear-resistant, strong and durable. Outside diameter : 12-65mm/0.5-2.6inch. Internal diameter : 1.8-56mm/0.1-2.2in Good strength Wear-resistant, strong anti-rust and anti-corrosion ability, stable performance. [Large Clamping Range]: It can achieve a long clamping range, which is more convenient and practical. The four jaws can be synchronized and centered automatically. Generally, it is not necessary to correct the part.[Main Use]: Mainly designed for small metal lathes, it is very convenient to use, each jaw can be adjusted independently, can be reversed, and has strong clamping force. Mainly used Small metal lathe. Specifications:Model: Z011AMaterial: Zinc AlloyChuck Type: Four-jaw ChuckOuter Diameter: 12-65mm/0.5-2.6inchInner Diameter: 1.8-56mm/0.1-2.2inchInner Diameter: 1.8-56mm/0.1-2.2inchThread: M12*1 Height: Approx. 34mm/1.34inchPackage List:1 Core