Professional tool for commercial or occasional use. This 3/8" drive metric socket features a 19mm double deep design and is manufactured from chrome vanadium steel for strength and durability. It has a 3/8" square drive, compatible with all 3/8" drive ratchets and extensions. The socket is 65mm in total length and includes a knurled grip for enhanced handling in oily or slippery conditions. It is a 12-sided, double-hex socket.