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PTM-52-800-B-EC, 800 N.m, Bi-Directional, Shut-Off External Control, 3/4"

The PTM-52 is engineered to be one of the lightest and fastest tools of its type on the market. The exceptionally compact 52mm diameter gearbox means that the tool is well balanced, light weight and provides excellent access to bolts.

The integration of electronic torque measurement and control into the PTM-52 Series is achieved with the minimum impact on overall tool size and weight.

Shut-Off, External Control incorporates a transducer, solenoid valve and three coloured LEDs for the indication of low, within tolerance or high results. All control functions and torque display are housed in an external controller unit (purchased separately).

Part number: 18121.B06
EAN Bar Code: -
NATO number: -
Accuracy: +/-2%
Operates between:
118.0 - 590.0 lbf·ft
160.0 - 800.0 N·m


  • Square Size: 3/4"
  • Max Air Pressure: 6.3 bar
  • Air Consumption: 19 litres/sec
  • Tool Weight: 4.9 kg
  • Reaction Plate Weight: 0.85 kg
  • Free Speed: 148 rpm


  • Light weight - single direction stall tool weighs just 3.8 Kg.
  • Quiet - less than 85 dB(A) when under load.
  • Non impacting - low vibration levels make these tools comfortable and safe to use.
  • Square drive is quickly and easily replaceable.
  • For safety, gearbox can rotate independently from the handle so that reaction forces are not transmitted back to the operator.
  • 'Soft Start' trigger controls aids socket location and allows gradual and safe reaction location.
  • 1" square drive available, Part No. 18545.
  • On Bi-Directional tools, the direction control knob is locked while the tool is running to prevent accidental damage to the gearbox.

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Use Our Calculators

Norbar has devised easy-to-use online calculators that support the correct application of torque in three key areas:

  1. Unit conversion to assist international measurement definitions.
  2. Torque extension for setting correct values
  3. Torque tension to identify precise levels of torque to be applied for individual applications.
Copyright 2017 Norbar

Norbar Torque Tools India Pvt. Ltd. Plot No A-168, Khairne Industrial Area, Thane Belapur Road, Mahape, Navi Mumbai - 400 709. INDIA