What tool can be used to aid in point-to-point measurements?

The steel tape measure is specifically designed for point-to-point measurements, making it the most suitable choice in this context. This tool allows users to easily extend the tape from one point to another, providing accurate measurements over distances. Its flexibility and length enable measurement of both short and long spans, which is essential in body repair work where precision is crucial for aligning parts and ensuring structural integrity.

The other tools listed, while useful in various measuring scenarios, do not specifically excel in point-to-point measurements. Calipers are primarily used for measuring the dimensions of small objects with precision, protractors are used for measuring angles rather than linear distances, and levels are utilized for checking the horizontal or vertical alignment of surfaces. Thus, the steel tape measure's role as a reliable tool for measuring distances directly between two points gives it the distinction of being the ideal choice in this situation.