A Torque Wrench is a special type of wrench that is used to apply a specific amount of torque or rotational force to a fastener such as a nut or bolt. This is important in many mechanical applications, as over-tightening or under-tightening a fastener can lead to problems like stripped threads, leaks, or other issues.

Torque wrenches typically have a calibrated scale or digital display that shows the amount of torque being applied to the fastener. The user sets the desired torque level, and the wrench will “click” or otherwise indicate when that level of force has been reached. Some torque wrenches may also have audible or visual indicators to help the user determine when the correct level of torque has been applied.

There are several types of torque wrenches, including:

1. Beam torque wrench: This is the simplest and most common type of torque wrench. It has a long beam with a scale that shows the torque being applied. The user applies force to the end of the beam until the desired torque level is reached.
2. Click torque wrench: This type of wrench has a spring-loaded mechanism that clicks or releases when the desired torque level is reached. It’s a popular choice for many automotive and mechanical applications.
3. Dial torque wrench: This type of wrench has a dial that shows the amount of torque being applied. It may also have a click or other indicator to show when the desired torque level has been reached.
4. Digital torque wrench: This type of wrench uses electronic sensors to measure and display the amount of torque being applied. It may have audible or visual indicators to show when the desired torque level has been reached.

When using a torque wrench, it’s important to follow the manufacturer’s instructions and to calibrate the wrench periodically to ensure accuracy. Improper use of a torque wrench can result in damage to the fastener, the wrench, or the application.