Walter werkzeuge double open end wrench spanner sets walter werkzeuge 000370281003 this 12 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 spanner sizes 6x7 8x9 10x11 12x13 14x15 16x17 18x19 20x22 21x23 24x26 27x32 30x34mm walter werkzeuge 000370281003 double