Sturdy and stable - The drill chuck grips the bit firmly, helping prevent looseness during use. Easy to install and remove, saving time and effort. Strong compatibility - Clamp range 2 to 13 mm, compatible with a wide variety of drills. Keyless self-tightening design provides ergonomic, tool-free operation. Special design for quick changes - Adaptable to non-quick-change drill bits and screwdriver bits. Hand-tighten the chuck to swap bits easily, with higher clamping force to reduce bit slippage and improve reliability. Long service life - Keyless chuck is durable and designed for long-term, interference-free use. Built for frequent use with easy installation and disassembly. Applications - Wood and metal drilling projects in home workshops and professional settings. - Screw driving and bit changes with drills or impact drivers, without needing a chuck key. - Repeated bit changes in assembly work or long-duration projects where reliability matters.