Chrome Vanadium steel sockets. Hardened and tempered with half chrome, half satin finish for corrosion resistance. Knurled ring for extra grip with oily fingers. WallDrive® configuration gives an additional 30% more torque handling power than traditional sockets. Handles rounded fixings as well. Supplied on socket rail. Features & Benefits:Chrome Vanadium steel sockets.Hardened and tempered with half chrome, half satin finish for corrosion resistance.Knurled ring for extra grip with oily fingers.WallDrive® configuration gives an additional 30% more torque handling power than traditional sockets.Handles rounded fixings as well.Sizes: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19mm.Supplied on socket rail.Lifetime guarantee*.Model No. AK2771 Specifications: Model No AK2771 Brand: Premier Configuration: 6pt Socket Contents: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19mm, Socket Rail Depth: Standard Nett Weight: 0.48kg Qty: 12 Type: 3/8"Sq Drive - Metric