Drop-forged Chrome Vanadium steel sockets, hardened and heat treated with a fully polished mirror finish. S2 Steel hex bits with a blackened finish for resistance to corrosion. Sockets include 2mm hex setscrew allowing easy replacement of individual bits. Supplied on socket rail. Features & Benefits:Drop-forged Chrome Vanadium steel sockets, hardened and heat treated with a fully polished mirror finish.S2 Steel hex bits with a blackened finish for resistance to corrosion.Sockets include 2mm hex setscrew allowing easy replacement of individual bits.Contents: 6, 7, 8, 10, 12, 14, 17, 19mm.Supplied on socket rail.Lifetime guarantee*.Model No. AK62258 Specifications: Model No AK62258 Brand: Premier Contents: 1/2"Sq Drive 55mm Hex Socket Bits; 6, 7, 8, 10, 12, 14, 17, 19mm Drive: 1/2"Sq Maximum Length: 55mm Minimum Length: 55mm Nett Weight: 0.90kg