High quality slim style Chrome Vanadium steel spanners. Hardened, tempered with a polished mirror finish for corrosion resistance. 144-Tooth WallDrive® ratchet ring giving ultra-smooth action, requiring only 2.5° rotation to pick up the next tooth. Covers sizes 10 to 19mm. Open-end of the spanners have hex profiles with serrated jaws for extra grip. Supplied in storage/carry rack. Features & Benefits:High quality slim style Chrome Vanadium steel spanners.Hardened, tempered with a mirror polished finish for corrosion resistance.144-Tooth WallDrive® ratchet ring giving ultra-smooth action, requiring only 2.5° rotation to pick up the next tooth.Serrated jaws for extra grip.Sizes: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19mm.Supplied in storage/carry rack.Lifetime guarantee*.Model No. AK63914 Specifications: Model No AK63914 Brand: Premier Contents: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19mm Maximum Length: 305mm Minimum Length: 180mm Nett Weight: 1.55kg