For use in automotive, industrial, agriculture, workshop. Enhanced life chrome vanadium steel, hardened & tempered, unique, ultra premium finish, scratch proof & rust resistant surface, enhanced performance, professional quality acc din & ansi, super grip holds fasteners firmly without deformation to fastener shape, knurled center band non - slip grip, pear head reversible ratchet: 48 tooth gear design, designed to transmit torques evenly. Quick release for convenient operation. Set contents 1 pc each 1/2" sq drive sockets: 8, 9,10, 11, 12, 13, 14,15, 16, 17, 18, 19, 21, 22, 23, 24, 26, 27, 28, 29, 30, 32 mm. Attachments: extension bar: 5" (125 mm), 10" (250 mm), universal joint, sliding t bar, pear head ratchet handle.