This is an ideal socket set for the professional mechanic in chrome vanadium steel (31 CrV 3 for industry, workshop and construction). It offers a range from 8mm to 34mm and comprises 29 pieces. Supplied in a robust powder coated steel box it includes a tried and tested (100,000 times to an extremely high level of torque) 1/2" square drive ratchet. The 19 sockets range from 8 to 34mm. Also included are two extensions, a T-adaptor, a universal joint, three deep sockets and two plug sockets (16 and 21mm).