125-150mm Three-Point Internal Micrometer With Carbide Measuring Faces, Ratchet, Supplied In Case - Metav IndustryLine

Take advantage of high wear resistance and consistent measuring force for reliable bore inspection in routine workshop use; the combination of carbide measuring faces and a ratchet drive ensures repeatable results and long service life. Order the instrument directly via Metav Werkzeuge or consult the technical advisors if further specification guidance is required.

Three-point internal micrometer 125–150 mm — analogue micrometer with carbide measuring faces (Metav IndustryLine)

A Three-point internal micrometer 125–150 mm designed for accurate internal diameter measurement of bores and recessed features in machine and toolmaking applications.

• Carbide measuring faces for wear resistance
• Ratchet drive for consistent measuring force
• Measuring range 125–150 mm
• Analogue vernier, 0.005 mm reading

Repeatable precision where it matters

The three‑point design centres reliably in bores, providing stable contact at three equidistant points to reduce tilting and eccentricity during measurement. Combined with carbide measuring faces, the instrument resists wear from repeated use and abrasive environments, so calibration intervals are extended and measurement drift is minimised. The mechanical construction yields an accuracy ±0.006 mm, which supports high‑quality inspection tasks in routine production and quality control; this level of precision makes the tool suitable as a trusted workshop standard for internal diameter checks.

Robust, workshop‑ready design and range suitability

With a measuring range 125–150 mm, the instrument falls into the standard class for machine and metalworking shops, delivering an effective balance between reach and rigidity. The measuring depth 140 mm enables access to deeper bores and housings without compromising handling. The matt-chromed scale and vernier reduce glare and improve legibility in bright workshop lighting, while the analogue layout and vernier graduation (0.005 mm reading) allow fast, intuitive readings without dependency on batteries or electronics. The instrument is supplied in a transport case and delivered without setting ring, allowing tailored selection of reference rings where specific bore standards are required.

Handling, maintenance and practical benefits

A ratchet drive ensures a consistent measuring force for repeatable results across operators and shifts, reducing operator‑induced variability. The analogue construction simplifies routine maintenance: periodic cleaning of the spindle and faces and light lubrication of the threaded spindle are normally sufficient to maintain performance. For workshop applications such as checking bearing bores, housings or jig components, the combination of three‑point contact and wear‑resistant faces translates into fewer re‑measures and less downtime, supporting production efficiency and traceable inspection routines.

Secure this Metav IndustryLine three‑point internal micrometer for dependable bore measurement; contact Metav Werkzeuge in Emmerich for application advice and reliable supply.

Technical Data

• SKU: M312.147
• GTIN: 4054469119533
• Category: Micrometers
• ECLASS: 21170335
• ETIM: EC003590

Facts

• Measuring range: 125–150 mm
• Measuring depth: 140 mm
• Resolution / reading: 0.005 mm
• Accuracy: ±0.006 mm
• Design: Analogue (vernier)
• Tariff number: 90173000

Special features

• Carbide measuring faces
• Matt‑chromed scale and vernier
• Ratchet drive
• Delivery without setting ring
• Supplied in transport case

FAQ

How does the three‑point mechanism improve measurement stability?
The three‑point internal micrometer centres automatically within a bore by contacting at three points; this geometry minimises tilt and eccentricity, so measurements taken with the instrument are more repeatable than single‑point probes.

Is a setting ring included for calibration?
Delivery is made without a setting ring; a separate gauge ring is recommended for zero‑setting and traceable calibration of the micrometer before use.

What accuracy can be expected in workshop conditions?
The instrument is specified with an accuracy of ±0.006 mm; combined with proper zero‑setting and careful technique, this supports reliable inspection within standard workshop tolerances.

Can the instrument be used for deep bores?
Yes. The measuring depth of 140 mm allows access to deeper recesses and housings while maintaining the rigidity necessary for repeatable internal diameter checks.

Are the measuring faces suitable for abrasive environments?
The carbide measuring faces provide high wear resistance, making the instrument appropriate for prolonged use where occasional contamination or abrasive particles may be present.

Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com