- Precision measurement: Dial indicator with 0.01 mm resolution provides precise measurement of inner diameters for engineering applications. Designed for comparing and verifying workpiece bore sizes with high precision. - Versatile range: Available in metric ranges 18-35 mm, 35-50 mm, and 50-160 mm, with a 0-10 mm micrometer to cover a broad set of bore sizes and measurement needs. - Construction: Made from stainless steel for excellent wear resistance and longevity. Its high hardness supports stable, repeatable performance in demanding industrial environments. - Easy to use: Bridge-type internal diameter micrometer with a practical, portable, user friendly design suitable for use in various engineering settings. - Use scenarios: Inspect bore tolerances in engine blocks, cylinders, and hydraulic components; verify inner diameters of bushings and gear bores during assembly; check hole sizes during quality control to ensure GD&T conformance.