What is the purpose of a torque wrench?

A torque wrench is a specialized tool designed for applying a specific amount of rotational force, or torque, to a fastener, such as a bolt or nut. This precise application of torque is crucial for ensuring that components are secured correctly without being over-tightened, which can lead to threaded damage or mechanical failure.

Using a torque wrench allows technicians to follow manufacturer specifications for assembly, maintaining the integrity of the joints and preventing issues such as vibration loosening or distortion of parts. The tool typically has a setting that indicates the amount of torque being applied, which can be adjusted based on the requirements of the job. This ability to measure and apply a precise amount of torque differentiates it from other tools and is essential in various automotive and mechanical applications where precise force is necessary for safe and effective operation.