The Micrometer Hole Bore Internal Diameter Gage Gauge is a precision tool for measuring internal diameters in holes and bores. It covers a 5 30 mm range with a resolution of 0.01 mm, providing accurate checks for quality control, setup, and inspection tasks in metalworking and manufacturing. Key benefits accuracy to 0.01 mm resolution for reliable bore verification Fast, repeatable measurements that support tight tolerance control Compact and easy to handle in confined spaces and busy work environments Helps reduce rework and scrap by identifying outoftolerance bores early Key attributes Functionality: Measures internal diameters in holes and bores with a micrometer style adjustment Range: 5 30 mm Resolution: 0.01 mm Application: Suitable for bore inspection in mechanical parts, tooling, automotive components, and general manufacturing Material: Not specified Performance: Designed to provide precise internal diameter readings within the stated range and resolution Applications and use cases Automotive and engine work: Verify cylinder bore diameters and other small internal holes during maintenance or rebuilds Machinery and equipment maintenance: Check bearing housings, gear bores, and similar internal features for proper fit Fabrication and quality control: Conduct quick bore inspections on machined parts to ensure components meet specifications How to use (general guidance) Clean the bore and the gauge before measurement Insert the gauge into the bore and adjust until it seats with light, even contact around the diameter Read the measurement on the micrometer scale and record it Compare the reading to the specified tolerance to determine pass or fail Notes This gauge is intended for internal diameter measurement within its stated range (5 30 mm) and resolution (0.01 mm) Use in accordance with standard workshop practices to maintain accuracy and longevity of the instrument