General description The 2-13mm Heavy Duty Professional 1/2-20 UNF Quick Change Keyless Drill Chuck Tool is designed for efficiency and durability. It features a heavy steel body and is made from high-quality materials including carbon steel and tungsten steel claws. This tool is ideal for quick bit changes and is suitable for use with impact drills of 1050W and above. Technical specifications Material: Carbon steel, tungsten steel Clamping range: 2-13mm Mount: 1/2-20 UNF Tail length: 46mm Head diameter: 43mm Size: 122 x 42mm Compatibility and accessories Compatible with mains, cordless drills, and conductive drills Includes 6.35mm (1/2') SDS adapter Installation Quick-change SDS shank for easy installation on electric hammers Usage Designed for clockwise rotation only Features a locking function to prevent hammering and strong vibrations during use Comfortable grip surface for enhanced torque output Unique thrust bearing for greater gripping force