ULTIMATEplus Double box spanner, 12x13mm
- flank traction profile
- according to DIN 896 form A / ISO 2236
- extremly versatile
- with centre hole
- hexagonal shank
- can use a ring spanner to drive
- high quality finish
- chrome vanadium
- External dimension B1: 16.5 mm
- External dimension B2: 17.5 mm
- It fits pipe / pin: 2
- Jaw opening in mm: 12x13 mm




