The Performance W86023 3-Piece 1/2-inch Drive Large Metric Hex Bit Socket Set is constructed of chrome vanadium for strength and durability. Features: * Three metric hex bit sockets: 12mm, 14mm, and 17mm * 1/2-inch drive * Chrome vanadium steel construction * Heat-treated for strength * Lifetime warranty What"s In The Box: * 12mm hex bit socket * 14mm hex bit socket * 17mm hex bit socket