Features Hardened Steel Alloy : Precision ground and finished in black, this drill chuck offers durability and longevity, ensuring reliable performance for various machining tasks. High Grip and Impact Resistance: With strong and clear speed advantages, this keyless drill chuck allows for cutting larger margins and processing with efficiency and precision. Versatile Functionality: Practicable in various processing environments, including dirty ones such as cast iron, this CNC milling machine drill chuck ensures consistent and reliable performance. Convenient Replacement Method: Easily replace blades and pads using only a wrench, streamlining the maintenance process for improved efficiency. Long Service Life: Boasting good strength and longevity, this lathe drill chuck reduces user tool costs and provides reliable performance over an extended period. Features: 1、The alloy is hardened steel, finished into black, and precision ground. 2、High grip, impact resistance, strong and clear speed advantages, can cut off larger margins and process. 3、Practicable in various processing environments, and has good functions even in very dirty environments such as cast iron. 4、Convenient replacement method, just need to use a wrench to complete the replacement of blade and pad. 5、Good strength and long service life, reducing user tool cost. Specification: Item Type: Keyless Drill Chuck Model: MT3-APU13 flat tail Clamping Range: 1 / 16in-1 / 2in Accuracy: Less than 0.002inch Material: Alloy hardened steel Hardness: HRC 40-42 Package List: 1 x Keyless Drill Chuck Package List 1 x Keyless Drill Chuck