• Special torque wrenches for tightening Tornado® appropriately (see our item T139 - X139)
• Permissible deviation/tolerance (according to DIN ISO 6789):  4% 
• While setting a tool it is extremely important to tighten it appropriately. If not effectively tight indeed, cutting tool could slide away from the tool holder during the working process. On the other side an excessive tightening can cause damages to the tool holder or spring collet or the tool itself.
• The wrench indicates when the torque (Nm) is reached with a strong noise according to the value in the corresponding table.
• Each torque wrench is supplied in its own cardboard box with instruction sheet and calibration test report unique for each wrench.

Download instruction sheet