ULTIMATEplus Double box spanner, 16x17mm
- 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: 21.0 mm
- External dimension B2: 22.0 mm
- It fits pipe / pin: 2
- Jaw opening in mm: 16x17 mm




