[Unique Locking Method]: This electric drill chuck adapter uses a unique locking function that allows the locking part to be installed in the rear cover, which can more effectively prevent loosening during work [Good Performance]: This keyless drill chuck has good wear resistance and durability, after heat treatment, the toughness and structural strength are improved [Metal Texture]: This 10mm drill chuck has a good metal texture and a comfortable surface on the housing, which effectively improves comfort during use [Superior Clamping Force]: This 3/8 keyless chuck's unique thrust bearing easily converts the torque applied by the handle into a greater clamping force, the clamping range is 0.8-10mm [Scope of Application]: This professional 3/8 chuck is suitable for impact drills with a power over 1050W Function: With heat treatment, the product has good toughness and higher structural strength. The unique patented locking function breaks the traditional locking method with ratchets on the back. The locking washer is installed in the rear sleeve, which can more effectively prevent loosening and detachment during work and make the pliers more reliable when holding the tool. Good metal texture, comfortable coating surface. The unique thrust bearing can easily convert the torque applied by the handle into greater clamping force. Scope of application: It is suitable for impact drills with a power over 1050W. Specification: Product name: 0.8-10mm all-metal self-tightening drill chuck threaded interface Clamping range: 0.8-10mm Connection size: 3/8-24UNF Scope of application: It is suitable for impact drills with a power over 1050W. Weight: 217g/7.7oz » Package list: 1 * Drill Chuck Note: The actual product color may differ from the photo due to light. There may be a slight deviation in the measurement of the product.