Industrial Tools
Torque Systems

Tohnichi AMRD

Capacity 1 / 2 / 4 / 8 cNm

Adjustable Torque Screwdriver for Small Screws (M1-M2)


Tohnichi's AMRD series torque screwdriver provides same features as series RTD, except designed for tightening small screws. Thereby this model is ideal for assembly of watches, precision electronic equipment, computer, etc.


Via micrometer scale torque can easily and quickly be adjusted. Index finger holding feature allows the operator to tighten with precise movements. Upon reaching the set torque, it clicks to signal tightening is complete. Integrated rotary clutch mechanism reliably prevents over-torque.


Key Features


  • Accuracy and calibration compliant to ISO 6789 type II class D
  • Micrometer adjustable
  • Clockwise direction
  • Click signal
  • Rotary clutch
  • Certificate (ISO/JIS)




  • Counterclockwise tightening model available on request.
  • Optionally available in metric (gf·cm) or in english units (lbf·in, ozf·in).
Model Item No. Torque Range cN·m Graduation cN·m Small Screw Tapping Screw Length mm Handle diam. mm Weight kg
AMRD 1 CN T202055 0.2 - 1 0.01 93 10 0.03
AMRD 2 CN T202057 0.4 - 2 0.025 M1 93 10 0.03
AMRD 4 CN T202060 0.8 - 4 0.05 (M1.1) M1.2 M1 93 10 0.03
AMRD 8 CN T202063 1.6 - 8 0.1 (M1.4) M1.6 (M1.1) M1.2 93 10 0.03

The requirements and verification procederes of the DIN EN ISO 6789 are valid for a measuring range from 20% to 100% of the rated capacity (maximum value). The effective span of a torque tool may differently begin lower.

All specifications without guarantee, errors and omissions excepted.


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