Chrome vanadium alloy steel for strength and long life; Triple chrome plating and ultra smooth high polish finish for added life; Meets and exceeds US federal standards for strength and performance; The Evercraft ratchet and socket set is a collection of most frequently used sockets. Socket Size: 1/4 in, 9/32 in, 3/8 in, 7/16 in, 1/2 in, 9/16 in, 5/8 in, 11/16 in, 3/4 in, 13/16 in