Manufactured from hardened and tempered Chrome Vanadium steel with a fully polished mirror finish. 12-Point ratchet/fixed WallDrive® ring ends. 72-Tooth ratchet requires only 5° rotation to pick up the next tooth. WallDrive® rings grip the wall, not the corners, giving up to 30% more torque. Supplied in storage tray. Features & Benefits:Manufactured from hardened and tempered Chrome Vanadium steel with a fully polished mirror finish.12-Point ratchet/fixed WallDrive® ring ends.72-Tooth ratchet requires only 5° rotation to pick up the next tooth.WallDrive® rings grip the wall, not the corners, giving up to 30% more torque.Sizes: 8, 10, 12, 13, 14, 17, 19mm.Min./Max. Lengths: 240/420mm.Supplied in storage tray.Lifetime guarantee*.Model No. AK6319 Specifications: Model No AK6319 Brand: Premier Contents: 8, 10, 12, 13, 14, 17, 19mm Maximum Length: 420mm Minimum Length: 240mm Nett Weight: 2.26kg