What is the usage of Dial test indicator or dial gauze?

A dial test indicator, also known as a dial gauge, is a precision measuring tool used to accurately measure small distances or variations in dimensions. It consists of a needle that moves along a dial face, providing precise readings in increments as small as 0.001 inches or 0.01 millimeters.

The dial test indicator is commonly used in manufacturing, machining, and engineering applications to measure runout, alignment, and surface variations in parts and components. It is often used in conjunction with other tools such as height gauges, micrometers, and calipers to ensure accurate and precise measurements.

Some common uses of a dial test indicator include:

1. Measuring the concentricity or alignment of a shaft or hole
2. Checking the flatness or parallelism of a surface
3. Verifying the accuracy of machine tool setups
4. Measuring the deflection or deformation of a part under load
5. Checking the runout of a rotating part, such as a shaft or pulley

Overall, the dial test indicator is a versatile and essential tool for ensuring precision and accuracy in various industrial and mechanical applications.