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. Supplied with socket rail. Features & Benefits: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; 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 11, 12, 13, 14mm.Supplied with socket rail.Lifetime guarantee*.Model No. AK2680 Specifications: Model No AK2680 Brand: Premier Configuration: 12pt Socket Contents: 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 11, 12, 13, 14mm, Socket Rail Depth: Standard Nett Weight: 0.24kg Qty: 13 Type: 1/4"Sq Drive - Metric