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. Supplied with socket rail. Features & Benefits: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; 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1", 1-1/16", 1-1/8".Supplied with socket rail.Lifetime guarantee*.Model No. AK2674 Specifications: Model No AK2674 Brand: Premier Configuration: 12-point Socket Contents: 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1", 1-1/