When measuring small distances, what tool is often utilized?

A micrometer is specifically designed for precisely measuring very small distances or dimensions, often down to the thousandths of a millimeter. It operates using a screw mechanism that allows for accurate readings of small increments with high precision. This makes micrometers ideal for applications in mechanical engineering, machining, and other fields where fine measurements are crucial.

While calipers can also measure small distances and are versatile in their measurement capabilities, micrometers provide a higher degree of accuracy for the smallest increments. Rulers and tape measures, on the other hand, are typically used for measuring larger lengths and are not suited for the precision needed in measuring small distances. Thus, for tasks requiring exact measurements in the smaller range, the micrometer is the appropriate tool to use.