- Repeatability: Built-in ratchet stop device guarantees accurate and repeatable readings, delivering consistent results for industrial applications. - Convenient locking device and sturdy design: Locking device with a robust machinery structure makes measurements intuitive and easy to read, ideal for quick and accurate checks. - Highly accurate measurements: Alloy measuring heads provide precise internal size measurement with fine workmanship and no burrs. - Easy readability: Clear marking line allows quick reading, enhancing efficiency in industrial settings. - Use scenario 1: Quality control checks of bore diameters in bearings, sleeves, or housings during manufacturing. - Use scenario 2: On the production line for fast verification of internal sizes during assembly to ensure proper fit. - Use scenario 3: Toolmaking or maintenance, inspecting internal bores after machining or adjustment to ensure consistent tolerances.NOTE:Range 5-30 mm, accuracy 0.01 mm