DEPTH GAUGE: Material: Base (stainless steel), Micrometer (metal), Weight: 62mm base (140g), Power supply: (micrometer) external 1 3v battery EQUIPPED WITH A LARGE LCD SCREEN: This measuring tool adopts a compact and sturdy structural design, which is reliable for long-term use. The large LCD screen can quickly display the measurement value, allowing you to easily make accurate measurements EASY TO OPERATE: This measuring tool has three large function buttons, which is user-friendly and easy to operate. Improved operability ensures stable and consistent performance, making it an ideal tool for professionals and amateurs STEPS: In the first step, unscrew the original probe of the indicator and install the flat probe. In the second step, install the indicator into the appropriate position in the base and tighten the nut MEASURING TOOL: It is very suitable for measuring shape and position tolerances, such as runout, straightness, parallelism, flatness, etc. Its versatility and accuracy make it an ind