Walter werkzeuge combination spanner sets 55 192434mm walter werkzeuge 000370281006 this 12 piece combination spanner set from walter werkzeuge features a range of quality tools manufactured with chromium vanadium steel phosphated the energy profile of the ring side displaces the load from the edge to the flank while screwing protects the screw head the impact resistant environment friendly phosphating protects against corrosion on a long term basis so no flaking or chipping is poss