A torque wrench is a specialized tool used to apply a specific amount of force to a fastener, such as a bolt or nut. It ensures that the fastener is tightened to the correct specification, which is crucial in various applications, including automotive and construction work. Using the right torque helps prevent damage to components and ensures safety. There are different types of torque wrenches, including click-type, beam-type, and digital models. Each type has its own method of indicating when the desired torque level is reached. Proper use of a torque wrench can enhance the longevity and performance of mechanical assemblies.