General description Professional heavy duty keyless drill chuck designed for quick changes and enhanced grip. This chuck features a robust steel body and is made from high-quality materials including carbon steel and tungsten steel claws. It is specifically designed for use with impact drills and electric hammer drills, providing a self-tightening mechanism that ensures a secure hold on drill bits. Technical specifications Material: Carbon steel, tungsten steel claws Drive length: 46 mm Head diameter: 43 mm Clamping range: 2-13 mm Drive: 1/2-20 UNF Dimensions: 122 x 42 mm Compatibility and accessories Suitable for impact drills with power above 1050W Includes 1 x SDS drill chuck adapter Installation Quick and easy to use by hand for fast bit changes Locking function to prevent shocks and vibrations during operation Usage Designed for use with cordless drills, drill drivers, and electric drills Note: The product cannot be used counterclockwise