What is the key feature of a torque wrench?

A torque wrench is specifically designed to apply a precise amount of rotational force, known as torque, to a fastener such as a bolt or nut. This functionality is crucial in various mechanical and engineering applications where the correct tightness contributes to the integrity of assembly, ensuring that components are neither too loose nor overly tightened, which could lead to damage or failure.

In use, a torque wrench can be calibrated to deliver a predetermined amount of force, allowing technicians to work within specific tolerances, which is essential for maintaining safety and performance standards in machinery and equipment. This precise application of torque is what distinguishes the torque wrench from other tools that do not serve this specific purpose, such as those used for gripping, measuring liquids, or capturing electronic signals.