Craftsman 6 Pc. Standard 3/8 In. Dr. Hex Bit Socket Set Set includes: 5/32, 3/16, 7/32, 1/4, 5/16 and 3/8 in. sizes Organized in an included molded plastic tray Coated in black oxide, hex ends resist rust for serious longevity Smooth polished surfaces are clearly marked for rapid identification Sockets wipe clean easily after the toughest jobs