Can turn your electric wrench into an electric hammer, no need to buy another electric hammer split type is more convenient,Can be connected to square handle with four pits, round handle with two pits and two slots Metal material wear-resistant Rust-proof, waterproof and corrosion-resistant Easy installation: first step: insert the drill bit, second step: installation completed Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:Photo Color Material:steel Type: A: Multifunctional conversion head square handle Package Contents: 1x Electric Drill Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.