Which are the two main types of torque wrenches?

The two main types of torque wrenches are the click and beam types.

A click torque wrench is designed to emit a click sound when the preset torque value is reached, which serves as an audible alert to the user. This mechanism helps ensure that the correct amount of torque is applied, preventing over-tightening or under-tightening of bolts and nuts, which is crucial in applications where precise torque specifications are essential for safety and performance.

On the other hand, a beam torque wrench relies on a visual indicator to show the torque being applied. As the user turns the wrench, a pointer moves along a scale to indicate the torque level. This type allows for continuous monitoring while tightening, and it is typically less expensive and more straightforward in design, making it a reliable tool for many users.

Other types mentioned, such as digital wrenches, provide electronic readouts, while manual and impact refer to different methods of torque application and tools, which do not fundamentally represent distinct classes of torque wrenches. Thus, the clear distinction of click and beam types emphasizes their predominant presence in the torque wrench category.