This inner diameter micrometer is crafted with a quality alloy probe to deliver reliable, accurate measurements for a wide range of internal dimensions. Its precise construction supports durability and consistent performance over time. quality alloy probe for durability and repeatable measurements across internal diameters. Clear digital LCD display for quick reading and easy recording; accuracy of 0.01 mm. Size options: 5–30 mm, 25–50 mm, and 50–75 mm; resolution 0.001 mm; clearly marked scale for effortless readings. Builtin ratchet stop and locking mechanism to ensure consistent, repeatable measurements; refined mechanical structure enhances ease of use and reading clarity. Typical use scenarios Manufacturing and quality control: measure bore diameters in machined parts, fixtures, and assemblies to verify tolerances. Maintenance and : check internal dimensions during component servicing or assembly to ensure proper fit. Tooling and mold work: verify dimensions of cavities or fixtures to ensure accurate production and testing.