Draper 1/4" and 1/2" Sq. Dr. Metric Tool Kit (100 piece)Comprehensive socket set for use around the home. Each socket is made from chrome vanadium steel, thats hardened and tempered with a matt finish. Each socket has a knurled ring for extra grip. Supplied with a 72 tooth reversible soft grip ratchet and a host of accessories. Packed in a tough plastic storage case. Contents: 1 2" Square drive 72 tooth ratchet 1 2" Square drive extension bars 125, 250mm 1 2" Square drive Three way adaptor 1 2" Square