Feature:1. With high grip and impact , this drill chuck supports strong and clear speed advantage, and it can cut off larger margins and process.br/ 2. Supports convenient replacement , it just needs to use a wrench to complete the replacement of blade and pad.br/ 3. Reduce the user's tool cost, lathe drill chuck is with good strength and long lifespan, easy to use.br/ 4. Alloy of such drill chuck is hardened steel, finished into black by grinding.br/ 5. Practicable in various processing environments, such drill chuck has good functions even in very dirty environments such as cast iron. br/ Specification:Item Type: Drill chuckbr/ Model: C20-APU13br/ Clamping Range: Approx. 1 ~ 1m / 0.04 ~ 0.51inbr/ Accuracy: Not more than 0.07mmbr/ Material: Alloy hardened steel, finished in black by grinding.br/ Hardness: HRC 56-58 br/ Package List:1 x Lathe Drill Chuck