1. Bit is made of S2 alloy steel, hardness arrived at 58-62 HRC, reduce wear-outs.2. Chrome vanadium steel socket with high strength and large torque.3. The bit is pressed directly into the socket to make a permanent connection.4. Four detent grooves in the socket drive end provides firmly connected with the retaining ball of the drive tool, to prevent slipping during use.5. The beveled inner edge helps guide the socket to the drive tool.6. It has a radius corner design, causing the socket to grasp the sturdy wall of the fastener instead of the corners, thereby reducing the wear of the fastener.7. 1/4" hex shank impact driver socket fit all quick change chucks as well as standard drill chucks, quick connect, work on quick change drill chuck, standard drill chuck, hand screwdriver, electric screwdriver, change your hand bit socket to a drive socket.Specification:Bit Socket -Bit Size: T55Drive Size: 3/8-inchTotal Length: 48mm / 1.89-inchBit Material: S2 Alloy SteelSocket Material: Chrome Vanadium Steel (CR-V)Finish: Polished, Chrome Plated, Copper PaintSocket Adapter -Square Drive: 3/8-inchHex Shank: 1/4-inchTotal Length: 66mm / 2.6-inchFinish: Chrome PlatedPackage Content:1 x Torx Bit Socket1 x Hex Shank Adapter
