Which tool is used to determine the thickness of materials?

The thickness gauge is specifically designed to measure the thickness of materials with precision. It often features a dial or digital readout that can provide accurate measurements, making it particularly useful in various applications like manufacturing, quality control, and engineering where precise thickness measurements are crucial.

In contrast, other tools may also measure dimensions but lack the specificity and accuracy of a thickness gauge. A caliper can measure various dimensions, including the thickness of objects, but it is more versatile and typically used for a range of measurements. A micrometer, while also capable of measuring thickness with high precision, is not primarily referred to as a thickness gauge; it usually has a more specialized application for measuring smaller dimensions and typically comes with a higher cost and complexity. A ruler is a basic measuring tool and while it can measure thickness, it lacks the fine resolution and precision required for exact thickness measurements.