Heavy Steel Body. Material: carbon steel, tungsten steel claws. NOTE: The product can NOT be used counterclockwise! Quick and easy to use by hand for quick bit changes. Increased clamping force, with quick-change SDS shank for electric hammer. Applicable scope: suitable for the power of 1050w above the impact drill. Keyless chuck for use on mains, cordless drills and conductive drills. Color: Sds Metal Mandrel It has a locking function, only to tighten the rotation adapter prevent hammering and other strong vibration when the work is released. Comfortable jacket surface, with strong grip, easy to grip, making the output torque larger. The unique thrust bearing, the torque applied to the handle is easily translated into greater gripping force. Applicable scope: suitable for the power of 1050w above the impact drill. Features: Material: HSS Tail length: 46mm Head diameter: 43mm Clamping range: 2-13mm Mount: 1 / 2-20UNF Size: 122 x 42mm Comtnu: 1 x SDS Chuck Adapter