Mlg Tools Short Socket 21Mm 1/2 Drive Solo Black And Blue 6 Points High Quality Ratchet Accessories

Other. The drive socket is the square hole which is used to attach the socket to a turning tool such as a ratchet or wrench. Drive sockets can come in one of five sizes: 1/4,3/8,1/2,3/4 and 1. Unlike the socket head, drive sockets are always listed in imperial sizes. 1/2 SOCKET DRIVE. 21mm SOCKET HEAD. CAN BE USED TO: BICYCLES, MOTORBIKES, CARS, ETC