AMRD / BMRD Adjustable Type Torque Screwdriver

  • Adjustable Torque Screwdriver for precision tightening of small screws (M1-M2).
  • Easily set torque by twisting body to select torque value
  • Rotary slip mechanism prevents over-torque.
    • User will sense and hear “click” at set torque and should stop turning. If the user continues, the rotary slip mechanism will ratchet the driver without applying more torque.
  • Tohnichi’s toggle clutch torque mechanism creates enhanced durability and reliability
  • Index finger holding feature allows the operator to tighten with precise movements.
  • Tohnichi bit set included for AMRD models. BMRD accepts standard 1/4″ hex root bits (sold separately)
  • Included Certificate of Calibration
  • Applicable for international use including the EU region. Compliant with calibration procedures of ISO 6789 Type II Class D.


American Models

SI Models

Metric Models

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