400 - 2000 kgf.cn Metric Interchangeable Head Adjustable Torque Wrench with Limit Switch. Limit Switch counts the number of "Clicks" when connected to PLC or Tohnichi's CNA-4mk2 Count Checker Graduation: 20 kgf.cn - 17 1/2" OAL Torque value set with external scale and knob.