The three-point electronic inside micrometer – EXPORT type is designed for fast and highly accurate measurement of internal diameters in through holes, blind holes, and cylindrical bores, even on complex mechanical components. The hard metal contact points ensure excellent wear resistance and long-term metrological stability, providing repeatable readings even on hardened or tough materials. The extension rod included allows easy access to deeper holes, making this instrument ideal for measuring valve bodies, gears, bushings, hydraulic components, and precision parts used in automotive, aerospace, mold manufacturing, precision mechanics, and maintenance sectors.

Technical data:

The three-point self-centering measuring system provides automatic alignment inside the bore, minimizing ovality errors and allowing the true diameter to be measured reliably even with slight operator misalignment. The supplied setting ring enables quick preset to the nominal size, simplifying calibration before batch measurement and reducing setup time. The electronics with IP54 protection rating safeguard the micrometer from dust and coolant splashes, allowing safe use directly in the workshop or near machine tools.

The high-resolution 0.001 mm display ensures clear, immediate readings, while the integrated functions – ON/OFF, ABS/INC (absolute and incremental measurement), Preset, mm/inch, and Zero – provide full flexibility for dimensional control, nominal comparison, and quick unit conversion. Powered by a 1.5 V SR44 battery, the instrument offers efficient energy consumption and long operating life.

During operation, the micrometer is inserted into the bore, the three anvils expand evenly until they contact the internal surface, and the reading stabilizes once the system is properly centered. This measuring architecture minimizes operator influence and guarantees accurate, repeatable, and traceable results in both in-process and final inspection. Robust, ergonomic, and easy to use, the EXPORT three-point electronic inside micrometer is the ideal solution for professionals seeking precision, speed, and reliability in internal diameter measurement, even on deep bores.