The Mechanics Tools M587C 1/2-inch Drive 2 in 1 Flip Impact Socket is a double ended impact socket with a 3/4-inch socket and a 13/16-inch socket at either end. Features: * Double ended impact socket * Socket at either end, SAE sizes: 3/4-inch and 13/16-inch * Constructed of heat-treated chrome vanadium steel for strength and durability * Lifetime warranty What"s In The Box: * Mechanics Tools M587C 1/2-inch Drive 2 in 1 Flip Impact Socket