What is the purpose of using a torque wrench?

Using a torque wrench is essential for achieving the appropriate tension in bolts and fasteners, which is crucial for preventing damage or failure in mechanical assemblies. The primary function of a torque wrench is to tighten bolts to a specific torque specification as defined by the manufacturer or engineering standards. This precision ensures that the proper amount of clamping force is applied, which helps prevent issues such as material fatigue, breakage, or leaks, especially in critical applications like piping systems and structural components.

Proper torque application is key in many construction and repair tasks, making the torque wrench an invaluable tool for boilermakers and other tradespeople. While other tools may serve different purposes, such as breaking loose rusted bolts or measuring weight, none fulfill the specific function of achieving precise torque settings for metal fasteners.