Which tool is commonly used for assessing frame alignment?

The frame machine is the primary tool used for assessing frame alignment in structural repair processes, particularly in the automotive industry. It offers precision alignment capabilities, allowing technicians to measure and correct any misalignments in the frame of a vehicle. The frame machine often includes built-in measuring systems and fixtures to help ensure that the vehicle's frame is restored to its original specifications after damage.

Other tools listed have specific functions but do not serve the primary purpose of assessing frame alignment. A lifter is typically used to raise the vehicle for inspection or repair but does not assess alignment. A laser level can help with leveling tasks and measuring heights but is not specifically designed for frame alignment. Similarly, a torque wrench is essential for tightening fasteners to specific torque settings but is unrelated to assessing the structural integrity or alignment of a frame. Therefore, while other tools have their own important roles in repair processes, the frame machine is the most relevant and specialized for the task of frame alignment assessment.