Industrial Tools
Torque Systems

Indicating Torque Wrenches

According to DIN EN ISO 6789 torque tightening tools are differed into indicating (type I) or releasing (type II) models. Type I does indicate the torque value by a mechanical scale, a dial gauge or an electronic display ('measuring wrench')


  • Class A = with torsion bar or beam lever
  • Class B = with scale, dial or digital display
  • Class C = with electronic measuring
  • Class D = screwdriver with scale, dial or digital display
  • Class E = screwdriver with electronic measuring

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