Sealey Socket Set 19pc 3/8"Sq Drive Metric - S01235. This professional socket set is manufactured from hardened and heat-treated Chrome Vanadium steel with a fully polished mirror finish. It covers sizes from 8 to 22mm and includes a 72-tooth comfort grip ratchet wrench, extension bars, a universal joint, and an adapter. The set is supplied in a tough, durable storage case and is part of the Siegen by Sealey range of quality tools at competitive prices. It comes with a lifetime guarantee.