Features Heat Treated for Enhanced Durability: Our product has been heat treated to provide excellent toughness and increased structural strength, ensuring reliability and longevity. Superior Metal Texture and Comfortable Grip: With a comfortable coat surface and excellent metal texture, our product is easy to clamp and handle, providing greater output torque and improved performance. Unique Thrust Bearing for Maximum Clamping Force: Our product features a unique thrust bearing design, which helps to convert torque into greater clamping force, providing enhanced gripping power for even the toughest tasks. Practical Surface Design for Reduced Jacket Shaking: The front and rear jackets of our product are designed to effectively cooperate and reduce shaking, providing a smooth and stable drilling experience. Wide Compatibility with AC and DC Electric Drills: Our product is suitable for use with AC electric drills up to 700W and a range of DC electric drills, making it a versatile and essential addition to any toolkit. Specification: Material: High Speed Steel Applicable machine: Impact drill Specification: 2-13mm 1/2 Hand-clamped drill chuck: all-metal self-locking 13mm drill chuck Scope of application: Applicable to AC electric drills and DC electric drills with power below 700W  Weight: 282g / 9.9oz Package list: 1 x Drill Chuck Note: 1. The actual product color may deviate from the photo due to light. 2. There may be a slight deviation in the measurement of product.3. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List