Which tool indicates the tightening force applied to a screw?

The torque screwdriver is specifically designed to apply a precise amount of torque to a screw, indicating the tightening force applied during the process. It typically features a mechanism that allows the user to set a specific torque level. When this level is reached, the tool either emits a click, slips, or disengages, providing a clear indication that the desired torque has been achieved. This is especially important in applications where a certain level of tightness is crucial to ensure the structural integrity of the assembly, such as in electronics or automotive tasks where over-tightening can lead to damage.

While other tools are designed for tightening screws and bolts, they do not inherently provide a measurable indication of the torque being applied. For instance, an impact wrench is effective for providing high torque output but lacks the precision control that a torque screwdriver offers. Similarly, a socket wrench is used to turn bolts and nuts but does not have a mechanism to measure the torque applied, and a torque driver, while related, does not specifically indicate the torque level as accurately or effectively as a torque screwdriver does. Thus, the torque screwdriver stands out as the tool that not only tightens screws but also ensures the user can monitor and control the applied force accurately.