Sealey WallDrive Socket Set 11 Piece 3/8"" Square Drive 12pt Imperial Socket Sets. Cold-forged Chrome Vanadium steel 12-point sockets, hardened and tempered for added strength. Fully polished chrome finish for corrosion resistance. WallDrive® configuration giving an additional 30% more torque handling power than traditional sockets. Knurled ring for extra grip with oily fingers. Sizes: 12-point; 5/16"", 3/8"", 7/16"", 1/2"", 9/16"", 5/8"", 11/16"", 3/4"", 13/16"", 7/8"", 15/16"". Supplied with socket rail. Lifetime guarantee*. Model No. AK2672. Weight0.58kg