General description Sealey Premier Offset Double End Ring Spanner Set includes 12 pieces, designed for professional use. Manufactured from heat-treated and hardened Chrome Vanadium steel, these spanners feature deep offset WallDrive® rings with a satin polished finish, providing excellent resistance to corrosion. The set is supplied in a convenient storage/hanging pouch. Technical specifications Material: Heat treated and hardened Chrome Vanadium steel Sizes: 6 x 7, 8 x 9, 10 x 11, 12 x 13, 14 x 15, 16 x 17, 18 x 19, 20 x 22, 21 x 23, 24 x 27, 25 x 28, 30 x 32 mm Model No.: AK6328 EAN: 5054511078695 Other information Lifetime guarantee*