In aircraft maintenance, what does a micrometer typically measure?

A micrometer is a precise measuring tool widely used in aircraft maintenance to measure various small dimensions with a high degree of accuracy. While its primary function can extend to several types of measurements, its most common application is to measure the diameter of small components, such as wires, pipes, and shafts.

When measuring diameter, particularly in cylindrical objects, the micrometer is designed to provide a clear reading of the measurement, often in millimeters or thousandths of an inch. This precision is crucial in maintenance operations where exact dimensions are critical for ensuring the proper fit and function of parts in aircraft systems.

Although other choices, such as overall dimensions or wall thickness, can also be measured using a micrometer with the right technique or specific type, the most direct and common application of micrometers is to measure diameters. This makes it an essential tool for technicians who need to ensure that components meet strict design and safety specifications.