Features Self-Tightening Mechanism: The innovative design ensures the chuck automatically tightens during operation, providing superior grip and ease of use for all your drilling tasks Premium Steel Construction: Crafted from high-quality steel, this chuck offers exceptional durability and strength, ensuring long-lasting performance under heavy use Heavy-Duty Design: Built for CNC lathes and milling machines, this chuck's robust construction withstands rigorous applications, making it ideal for professional environments High Precision and Grip: Engineered for accuracy, this chuck delivers high gripping force and reliability, ensuring stability and precision for all your drilling needs Compatible with Various Drillbits: Designed to accommodate a wide range of drillbits, this chuck enhances versatility, making it a perfect addition to your workshop toolkit Features: 1、 and 2、Drill Chuck has self-tightening key-l feature,easy to use 3、Made of premium steel material with high hardn, sturdy and in use 4、Heavy design, suitable for CNC Lathe/milling, drill pr. 5、High precision, high gripping force, high reliability and stability. Specification: Features: and Drill Chuck has self-tightening key-l feature,easy to use Made of premium steel material with high hardn, sturdy and in use Heavy design, suitable for CNC Lathe/milling, drill pr. High precision, high gripping force, high reliability and stability. Specification: Clamping range :1-16mm Accuracy: 0.005 Product list: 1 x Drill Chuck 1 x Shank Package List