Features Integrated Design for Precision: Features a straight shank design that ensures a compact structure and high accuracy for optimal performance in various applications Secure Automatic Fastening: Equipped with an automatic fastening device that prevents slipping or falling off, providing enhanced safety during operation Durable 40Cr Material: Constructed from high-quality 40Cr material, treated for hardness and wear resistance, ensuring longevity and reliability in demanding conditions Versatile Clamping Range: Offers a clamping range of 1-13mm with an automatically increasing clamping force, significantly boosting productivity and efficiency Compact Size for Compatibility: Designed for easy integration with CNC machine tools and milling machines, making it an ideal replacement for your existing chuck system Features: 1、The drill chuck has an integrated design of straight shank, compact structure and high accuracy. 2、The automatic fastening keyl device is not easy to fall off or slip after installation, and the safety factor is high. 3、Made of 40Cr material, after special quenching treatment, it has high hardn and wear resistance. 4、The clamping range is 1-1m and the clamping force can be automatically increased, effectively improving the procing efficiency. 5、The drill chuck is small in size and is mainly used for CNC machine tools, milling machines, etc. Specification: Item Type: Drill Chuck Material: 40Cr Hardn: 40HM Accuracy: 0.08mm Clamping Range: Approx. 1-1m / 0.04-0.5in Applicable Machine Tool: Milling machine Package List: 1 x Drill Chuck Package List 1 x Drill Chuck