Attributes:Bit Socket:* HRC: 58-62* Size: M12* Drive Size: 1/2"* Total Length: 100mm / 4"* Material: S2 Steel and Chrome Vanadium SteelAdapter:* Drive Size: 1/2"* Hex Shank: 1/4"* Total Length: 70mm / 2.76"* Finish: Chrome PlatedWhat Is Included:* 1 Pieces x Bit Sockets* 1 Pieces x Hex Shank AdapterApplications & Features:--- The impact bit socket is a tool specially used for installing and removing screws or nuts, and is usually used with tools such as impact drills.--- The bits are suitable for automobiles, mechanical repairs, construction processes, home installation equipment, etc., and are used in conjunction with ratchet wrenches and electric wrenches.--- Hex handle adapter can be used to connect wrenches and sockets to achieve quick conversion of operations of different specifications.