Features Enhanced Gripping Power: Enjoy superior gripping force with our specialized anti-th bearing, effectively converting your hand-applied torque for optimal performance Comfortable & Secure Handling: The ergonomic sleeve design ensures a comfortable grip, allowing you to apply more output moment of force while minimizing hand fatigue Aesthetic & Functional Design: The sleek design of the front and rear sleeve ensures effective cooperation, reducing run-out and enhancing overall drilling precision Unique Bit Clamping Structure: Our innovative structure securely clamps the bit head, preventing slippage and ensuring consistent results with every use Versatile Clamping Range: Accommodates a wide clamping range of 0.8-10mm, making it compatible with various drill sizes for all your project needs Features: 1、Comfortable of sleeve and positive gripping can apply more output moment of force 2、By using specialized anti-th bearing to convert hand-applied moment of force into superior gripping forc 3、Aesthetic and practical design of make sure the front and rear sleeve cooperate with each other more effective and reduce the run out of sleeve 4、Unique structure, can very good clamp bit head 5、The clamping range of chuck is 0.8-10mm Specification: Features: 1. Comfortable of sleeve and positive gripping can apply more output moment of force. 2. By using specialized anti-th bearing to convert hand-applied moment of force into superior gripping force. 3. Aesthetic and practical design of make sure the front and rear sleeve cooperate with each other more effective and reduce the run out of sleeve. 4. Unique structure, can very good clamp bit head. 5. The clamping range of chuck is 0.8-10mm. Specification: Condition: 100% Item Type: Drill Chuck Material: Plastic Clamping Range: 0.8-10 mm Connection Thread: 3/8-24UNF Package List: 1 * Drill Chuck 0.8-10mm 3/8-24UNF 1 * 1/4 Hex Head 3/8 Thread Extension Rod Note: 1. Please allow slight error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. Package List