When marking hole locations, which tool should be used with .01 inch graduations?

The decimal scale is the most suitable tool for marking hole locations with .01 inch graduations because it provides a precise and easy-to-read measurement system. With its fine graduations, a decimal scale enables you to accurately determine small increments, which is essential in aerospace assembly where precise hole placement can significantly affect the fit and function of assembled components.

This tool typically features a linear scale with decimal divisions, making it particularly useful for tasks that require detailed measurements, such as specifying hole locations with a high degree of accuracy. It allows for quick referencing and supports making adjustments as needed during the marking process, ensuring that every detail for assembly is accounted for.

Other tools, while useful in their own contexts, may not offer the same level of precision specifically for measurements in tenths of an inch. A ruler, for example, might be less effective when finer adjustments are necessary. A caliper is excellent for measuring the thickness or internal dimensions of an object but is not specifically designed for marking. A protractor, although useful for measuring angles, does not pertain to linear measurements for hole locations. Thus, the decimal scale emerges as the optimal choice for this task.