A precision measuring instrument designed to measure the internal dimensions of bores, holes, and other cylindricalspaces with a high degree of accuracy. Unlike traditional micrometers, which measure external dimensions, this toolspecializes in gauging internal diameters. The digital display provides an easy-to-read measurement, improvingaccuracy and reducing the chances of human error.
- Resolution: 0.001mm/0.00005'
- IP65 protection level
- Button: on/off, set, mm/inch, ABS/INC, data output
- Automatic power off
- Data output
- Ratchet stop
- Carbide measuring faces (over 12mm series)
- Extension rod are included
- Setting rings are included (Range < 100mm)
Technical Specifications

How it works:
- Three-point contact: The micrometer has three measuringpoints that evenly distribute pressure on the inner surface of the hole, ensuringaccurate and repeatable measurements.
- Digital display: The measured diameter is displayed digitally,eliminating the need for manual reading and reducing the possibility of errors.
- Extension rods: These can be used to measure deeper holes.
Applications
- Machining and Metalworking: Used to measure theinternal diameters of bores and holes in metal components, ensuring thatthey meet the required specifications.
- Quality Control: Essential in inspection processes toverify the accuracy of internal dimensions in manufactured parts.
- Engineering: Applied in various engineering tasks whereprecise internal measurements are critical, such as in the design andfabrication of mechanical parts.
- Automotive and Aerospace Industries: Used for measuringthe internal diameters of engine cylinders, bearing races, and othercritical components that require precise tolerances.