Walter werkzeuge double open end wrench spanner sets walter werkzeuge 000370281001 this 8 piece spanner set from walter werkzeuge features a range of quality tools manufactured with chromium vanadium steel phosphated the impact resistant environment friendly phosphating protects against corrosion on a long term basis so no flaking or chipping is possible walter werkzeuge 000370281001 double open end wrench spanner set 8pc