Cold stamped slim style Chrome Vanadium steel spanners with a satin polished finish for corrosion resistance. Open-end and 12-point WallDrive® ring combination. Supplied in EVA storage tray. One of a comprehensive range of Premier Hand Tools, suitable for daily professional use. Cold stamped slim style Chrome Vanadium steel spanners with a satin polished finish for corrosion resistance. Open-end and 12-point WallDrive® ring combination. Sizes: 1/4"", 5/16"", 3/8"", 7/16"", 1/2"", 9/16"", 5/8"", 11/16"", 3/4"", 13/16"", 7/8"". Overall Size (W x D x H): 285 x 175 x 50mm. Supplied in 25mm EVA storage tray. Lifetime guarantee*.