What does "gauge" measure in aviation tool terminology?

In aviation tool terminology, "gauge" refers to a measurement that assesses the thickness or pressure of materials or liquids. This term is widely utilized to quantify various properties in aviation, ensuring precision and safety in operations. For instance, a thickness gauge can determine the material's specifications, which is critical for structural integrity and performance, while a pressure gauge is essential for measuring the pressure of fluids in systems such as fuel lines or hydraulic systems.

Understanding these measurements is crucial as they contribute to the maintenance and inspection of aircraft components, thereby enhancing safety and efficiency in aviation operations. Other aspects like overall weight, temperature, or fuel efficiency are measured using different tools or terminology specific to those parameters.