Emtop 1⁄4inch Drive Socket Set 45pcs

Socket Drive; 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.