Features High Precision Performance: Achieve an accuracy of 0.08mm, ensuring consistent and reliable results for your milling tasks Enhanced Clamping Strength: Automatic tightening mechanism boosts clamping force, providing secure tool holding during operation Exceptional Durability: Special quenching treatment enhances longevity, making it suitable for rigorous use in various hardware applications Versatile Clamping Range: Accommodates a clamping range of 1-6mm, allowing for compatibility with a wide variety of drill bits Premium Quality Construction: Made from high-quality 40Cr material, designed for a long service life and reduced wear over time Features: 1、The integral drill chuck is designed with straight shank, possing high accuracy and good rigidity. 2、Users can automatically tighten the keyl device and automatically increase the clamping force. 3、The integral drill chuck is the key part with special quenching treatment to improve durability. 4、The accuracy of the product is about 0.08mm, the hardn 40HB and the clamping range about 1-6mm. 5、Made of high？quality material, the drill chuck is with long service life. Specification: Item Type: Integral Drill Chuck Material: 40Cr Accuracy: 0.08mm Hardn: 40HB Clamping Range: Approx. 1-6mm / 0.04-0.24in Applicable Machine Tool: Milling Machine R8 Integrated Drill Chuck Is Mainly Used For Turret Milling Machines Package List: 1 x Integral Drill Chuck Package List 1 x Integral Drill Chuck