- Material and durability: Made of high-speed steel, this clamp is sturdy and durable. It features a stable diameter, with other parts precision-ground to eliminate imbalance. It offers high rigidity, strong tightening force, and compatible nuts for reliable tightening. - Precision and strength: The chuck bracket is hardened and ground for maximum accuracy and high concentricity. The drill chuck provides a very strong grip, high strength and hardness, and is not easily deformed. - Compatibility and application: Used to connect the CNC spindle and the tool. Straight shank body to fix small drilling and milling tools. Especially suitable for various drilling and milling machines, and spindle Morse taper machine tools. - Easy installation and operation: Lightweight and compact for easy installation and operation. Before inserting the chuck, assemble the chuck into the clamping nut.