Used for quick-change SDS handle of electric hammer, immediately convert impact driver into non-quick-change bit Scope of application SDS quick change handle, used for electric hammer. For cordless electric drills and multi-function electric screwdrivers The unique single sleeve design can be easily squeezed with one hand. Single torque plugs are easy to operate and apply, resulting in excellent tightening Good metal texture, comfortable outer surface, strong grip, easy to grip, increase output torque The three-jaw all-metal hand-tight drill chuck is made of metal and has extremely high durability The three-jaw all-metal hand-tight drill chuck uses a unique thrust bearing, and the torque applied to the handle can be easily converted into greater grip. Multiply the utility of the cordless impact wrench and wrench to complete the work of a conventional drill, and convert a two-hole electric hammer into a three-jaw electric drill pliers. Features Drill chuck -Color:Black -Material:metal and plastic -Size:12.2x4.2 cm/4.80x1.65 inch. Name: SDS metal chuck Tail length: 4.6 cm/1.81 inch. Head diameter: 4.3 cm/1.69 inch. Clamping range: 0.2 cm/0.08 inch-1.3 cm/0.51 inch. Note: This product cannot be used counterclockwise! Package Including 1 * SDS chuck adapter