Efficient Measuring Capability: - Measuring range: 8-150 mm; precision: ±0.1 mm - Quick assessment of inner diameter in holes or grooves when used with a micrometer or a caliper - Built-in lock to maintain setting stability - Ideal for measuring hole depths or slot dimensions and optimising testing processes Premium quality: - T-bore gauge with an extraordinary construction using high-quality materials - Increased rigidity, superior wear resistance, and longer service life - Reliable performance and endurance for all precision measurements Precise self-alignment: - Measuring tool set with stably attached double handles on its contacts - Automatic self-alignment for consistent readings - Intelligent design eliminates the need for manual calibration while ensuring accuracy Optimal accuracy: - Contact pistons at the business end are made of heat-treated steel with precisely rounded ends - Allows access to the smallest openings without obstruction - Delivers reliable measurements and smooth operation in tight spaces Use scenarios: - Inspect inner diameters of bushings, cylindrical housings, engine blocks, or other components with limited access - Measure hole depths or slot dimensions during fixture setup, quality control, or maintenance - Pair with a micrometer or caliper for rapid, repeatable internal dimension checks in machining or assembly workflows