Professional high quality combination spanners, forged from chrome vanadium steel, hardened, tempered and satin chrome plated for corrosion protection. Manufactured to DIN 3113 . Broached jaws and rings to ensure a consistent tolerance and a guaranteed accurate fit. Both the jaw and ring end are set at a 15 degree offset for ease of use in awkward positions. Contents: 6, 8, 10, 11, 12, 13, 14, 17 and 19mm.