The Performance W1387 10-Piece 3/8-inch Drive SAE Hex Bit Socket Set is constructed of hardened and tempered chrome vanadium steel for extra strength and durability. Features: * Hardened alloy steel bits * Hardened and tempered chrome vanadium steel sockets * Professional sand finish What"s In The Box: * 3/32-inch Hex Bit socket * 7/64-inch Hex Bit socket * 1/8-inch Hex Bit socket * 9/64-inch Hex Bit socket * 5/32-inch Hex Bit socket * 3/16-inch Hex Bit socket * 7/32-inch Hex Bit socket * 1/4-inch Hex Bit socket * 5/16-inch Hex Bit socket * 3/8-inch Hex Bit socket * Storage rail