Open ring spanner with torque-wrench fitting

Note:
The set value for the torque wrench is dependant on insertion dimension "S".
The operating manual of your torque wrench contains the necessary specifications and calculation formulas.

Max. permissible tightening torque (Md max.) for use with the AMF chain clamping set 6540:
6540-12 - SW 36mm: 45 Nm
6540-16 - SW 46mm: 90 Nm
6540-20 - SW 65mm: 190 Nm
6540-24 - SW 65mm: 300 Nm

Advantage:
Ideally adapted for the controlled actuation of the hook end 6540 of the chain clamping set.