Gedore 4 Metric Flat Ring Spanner
 
These Bi-hexagon spanners have thin walls and are chrome plated with polished ends.
Features:
- Conforms to DIN 837 Form B, ISO 3318, ISO 1085
 
- Flat pattern
 
- Thin-walled
 
- UD-profile
 
- Gedore vanadium steel 31CrV3, chrome-plated
 
- Not standardized