LinkMejor 21mm Spark Plug Socket Set, 3/8" Drive 6 Point Deep Thin Wall with Hex Shank Power Drill Adapter

1. Chrome vanadium steel socket with high strength and large torque. Polished-Chrome Plated for corrosion resistance.2. Rubber retaining ring insert secures and protects the spark plug.3. Deep well thin wall design is suitable for most cars, trucks, lawn mowers, motorcycles and many other applications.4. 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.5. 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:Socket -Size: 21mmDrive Size: 3/8-inchTotal Length: 63mm / 2.5-inchBit Material: S2 Alloy SteelSocket Material: Chrome Vanadium Steel (CR-V)Finish: Polished, Chrome PlatedSocket Adapter -Square Drive: 3/8-inchHex Shank: 1/4-inchTotal Length: 66mm / 2.6-inchFinish: Chrome PlatedPackage Content:1 x Spark Plug Socket1 x Hex Shank Adapter