Torque conversion


Features an external scale that can be easily changed by moving knob or twisting body to set a particular torque value.

  • The torque setting can be easily viewed and changed by turning end knob to move the scales.
  • Because of its easy torque setting style, it can be susceptible to unauthorized or inadvertent changes to the torque setting.
  • Ideal for applications that require a variety of torque settings using one tool.

For Torque Wrenches

QL turning Turn end knob CW to increase torque setting and CCW to decrease; lock in place with wing nut locker. Easily view torque setting on scales.

Examples of Adjustable Models: QL, CL, DQL, MTQL, QLLS, MQL

For Torque Screwdrivers

Move black lock ring to unlock position and while holding main knurled part, twist body to change torque setting.

Examples of Adjustable Models: RTD, LTD, AMRD, BMRD, AMLD, BMLD


Features no scale on the body of the tool.

  • Because there are no scales, a torque tester and a specialized adjusting or thrust ring tool are required to set the torque value.
  • Ideal for mass assembly applications where one torque setting is dedicated to one tool.
  • Since this type requires additional equipment to change the torque, it prevents the torque setting from being changed by unauthorized personnel.
  • Preset styles have lower maintenance costs compared to other types of torque tools due primarily to the fact that there is no scale to maintain and calibrate.

For Torque Wrenches

Requires torque setting tool and torque tester to change torque value.
QSP3 endn

Tools that require thrust ring tool have an end cap that must be removed and a thrust ring screw that is loosened, then thrust ring tool is used to fit into two holes to moved CW or CCW to increase or decrease torque value. For tools that take adjusting keys, the key fits directly into the end of the tool. The wrench is checked against a torque tester to verify torque value. Adjustments are made until the required setting consistently shows on the torque tester.

ph SP
Examples of Preset Models: SP, RSP, QSP, CSP, QSPCA, MQSP

For Torque Screwdrivers

ph cat042
ph TDT2rtd load
Requires torque setting bar and torque driver tester to change torque value.

While holding the driver, insert adjusting tool bar into the grooves at the base of the handle. Turn CW to increase torque and CCW to decrease. Confirm value by checking on torque driver tester. Adjust and recheck until target torque is consistently achieved.



Features main and supplemental scales, but no adjustment knob.

  • The torque setting can be easily viewed and changed, but requires a standard hex key to move the scale to the required torque setting.
  • This type combines the advantages of the adjustable and preset types, by easily setting the torque value without a torque tester yet keeping it secured by requiring a key for setting the scale.
  • Ideal for applications that require quick visual confirmation of the torque setting, variety of torque settings on one tool and the added security to prevent inadvertent setting changes.

For Prelock Models

PQL adjustment
Use standard hex key to move scale to desired torque setting.
ph PQL
Examples of Pre-lock models: PQL, PCL, MPQL, PQLLS