Torque conversion

LTD Adjustable Limiting Type Torque Screwdriver

RoHS Assembly Adjustable Non-rotary Slip Graduation


  • Adjustable Limiting Torque Screwdriver
  • Adjustable type features external scale that can be set simply by twisting the body to line up with desired torque value and then secured in place with black lock ring.
    • Hexagonal shaped locker prevents driver from rolling when set down on flat surfaces between uses.
  • Upon reaching set torque, user will sense the limit. The tool will spring back slightly and user must stop turning.
    • If user, continues past the limit, tool will continue to apply additional torque.
    • LTD is non rotary type. See RTD version for rotary slip feature which prevents over-torque.
  • Tohnichi's toggle clutch torque detection mechanism enhances accuracy and durability.
  • Accepts standard 1/4" hex root bit (sold separately)
  • Includes Certificate of Calibration
  • For Preset Version Limiting Screwdriver, See Model NTD
  • Counterclockwise tightening model available upon request.
  • Applicable for international use including the EU region. Compliant with calibration procedures of ISO 6789 Type II Class D.
torque animation The LTD series is equipped with Tohnichi’s own toggle mechanism for torque control.

Standard accessories

Resin grip (for LTD120CN and LTD260CN models only) is a standard accessory.
LTD260CN Preset hook key for up to 2000CN models only.
LTD2000CN is an auxiliary tightening tool supplied as a standard accessory.


product dimensions LTD 15CN~500CN product dimensions LTD 120CN, 260CN with resin grip product dimensions LTD1000CN product dimensions LTD2000CN