125-1500mm Internal Digital Micrometer With IP65 Protection, ISO 17025 Calibrated - Microtech Metrology

Take advantage of precise, repeatable internal measurements combined with factory calibration to ISO 17025 and robust IP65 protection for reliable shop-floor performance. Secure supply and technical advice are available from Metav Werkzeuge for tailored configurations and rapid delivery.

Internal micrometer 133800152 — Digital internal measuring instrument, 125–1500 mm (Microtech Metrology)

The Internal micrometer 133800152 is a digital instrument for large-bore dimensional inspection and workshop metrology, designed to measure internal diameters across a wide range with high repeatability and traceable calibration

Digital display with mm/inch conversion Calibrated to ISO 17025 Measuring range 125–1500 mm IP65 protection for industrial environments

Reliable accuracy and consistent contact for production control

The instrument delivers a nominal accuracy of ±0.025 mm with a fine resolution of 0.001 mm, providing the measurement certainty required in serial inspection and component acceptance. A built-in friction ratchet standardises the contact force at the anvils, reducing operator-induced variation and ensuring repeatable results across shifts. This combination of resolution and mechanical control supports statistical process control and helps to reduce scrap by catching deviations early in the production chain.

Robust protection and durability for workshop use

Rated IP65, the micrometer withstands dust ingress and low-pressure jets of water, making it suitable for busy shop-floor conditions where coolant mist and particulate can otherwise compromise instruments. The sealed electronics and rugged mechanical components lower downtime for maintenance and prolong service intervals, which keeps measurement capability on the line and production moving. The durable design therefore supports continuous use in metalworking and assembly operations.

Intuitive digital functions and traceable calibration

The digital display offers ON/ABS, SET and HOLD keys plus quick mm/inch conversion to speed up measurement cycles and reduce transcription errors. The instrument is delivered fully calibrated to ISO 17025, and a calibration certificate is included for immediate traceability in quality documentation. This formal calibration supports compliance with internal quality systems and external audits, simplifying implementation into laboratory or production metrology routines.

Wide measuring range with extension rods for flexibility

Covering 125–1500 mm, this long-range internal micrometer spans small to very large bores without frequent tool changes; extensions supplied (25; 50×2; 100×2; 200; 400×2) allow modular assembly to suit specific diameters. The modular rod system reduces inventory by consolidating multiple size ranges into a single instrument and shortens setup time during inspections, which improves throughput for maintenance and incoming inspection tasks.

Discuss calibration, extension configurations and delivery options with Metav Werkzeuge — our specialists in Emmerich will advise on the best setup for the application and ensure rapid, traceable supply.

Technical data

• Article number: 133800152
• GTIN: 4061905041563
• Manufacturer: Microtech Metrology

Facts

• Measuring range: 125–1500 mm
• Resolution: 0.001 mm
• Accuracy: ±0.025 mm
• Protection class: IP65
• Display functions: ON/ABS, SET, HOLD, mm/inch

Special features

• Friction ratchet for consistent measuring force
• Extensions delivered: 25; 50 (2); 100 (2); 200; 400 (2)
• Calibrated to ISO 17025; calibration certificate included
• Digital instrument for internal diameter measurement

FAQ

What range of diameters can be measured with this instrument?
The instrument measures internal diameters from 125 mm up to 1500 mm; extensions supplied permit incremental configuration across that span.

Is the micrometer ready for use with traceable certification?
Yes — the micrometer is supplied calibrated to ISO 17025 and includes a calibration certificate for immediate traceability in quality records.

Which display functions are available on the digital unit?
The digital module provides ON/ABS, SET and HOLD functions plus mm/inch conversion to streamline readings and reduce manual conversion errors.

How does the instrument maintain repeatable contact force?
A built‑in friction ratchet standardises the contact pressure at the measuring faces, ensuring repeatable measurements and reduced operator influence on results.

Manufacturer / Responsible: Microtech, Nizhneyurkovska str., 45a, 04080 Kyiv, Ukraine; tool@microtech.tools