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 SDS quick change shank for electric hammer. Applicable scope: suitable for 1050w power above the impact drill. Keyless chuck for mains use, cordless drills and drill drivers. Color:Sds Metal Chuck It has a locking function, only to tighten the rotation adapter prevent hammering and other strong vibrations 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 easy to translate into a greater gripping force. Applicable scope: suitable for 1050w power above the hammer drill. Features: Material: HSS Shank Length: 46mm Head Diameter: 43mm Clamping Range: 2-13mm Mount: 1/2-20UNF Size: 122 x 42mm Comtnu: 1 x SDS Chuck Adapter