The torque wrench mechanism of working is mainly dependent on torque calibration values. It allows the operator to set the torque applied to the fastener so it can be matched to the specifications for a particular. Tone Tmnswh Torque Wrench Preset Type Digital Reading Anti-falling With Special Socket Holding Kouei Japan Trading Co Ltd A torque wrench is used where the tightness of screws and bolts is crucial. How does a preset torque wrench work . The amount of torque that you need to fasten or loosen the bolts depends on how much pressure you apply on its handle. That movement is transferred to the indicator, which is placed on the maximum torque reading until someone sets it to zero. While tightening a fastener, the wrench will make a “click” sound and slip slightly once you’ve hit the preset torque value. The benefit of this type of torque wrench is that you’re able to feel the torque and not by having to take the time to view the gauge or scale. The general idea is to ...