8–10mm Digital Three-Point Internal Micrometer, RB6 Spindle, Digital Readout mm/inch - Metav IndustryLine

Take advantage of the combination of fine resolution, reliable three‑point measurement and blind‑hole capability for consistent bore inspection; order the instrument directly via Metav Werkzeuge or request further advice from our consultants.

Digital three‑point internal gauge M312.211 – 8–10 mm, RB 6 data output

Digital three‑point internal gauge M312.211 is a compact, measurement‑grade instrument for precise internal diameter control in small bores and blind holes.

• Digital three‑point measurement, 8–10 mm range
• High accuracy: 0.004 mm tolerance
• RB 6 data output, mm/inch display functions
• Suitable for blind‑hole measurements

Faster, repeatable bore checks with measurement-grade accuracy

The digital three‑point concept provides a stable contact geometry that translates small bore variations into consistent readings. With a resolution of 0.001 mm and a stated accuracy of 0.004 mm, this device is suited to routine quality checks and final inspection tasks where reproducibility matters. The electronic readout, featuring ON/OFF/SET, HOLD and mm/inch functions, reduces interpretation errors and speeds up throughput compared with optical or analogue gauges. For production and inspection environments, this means fewer rechecks and clearer pass/fail decisions.

Ergonomic handling that reduces measurement scatter

Designed for efficient use in the workshop and calibration lab, the instrument combines tactile three‑contact sensing with a compact form factor and a modest weight of 0.7 kg, making it easy to position in confined setups. The three‑point contact stabilises the measurement axis and helps to minimise influences from off‑axis probing or uneven operator pressure. The delivery state is without a setting ring or extension, which keeps the unit compact for direct in‑machine or bench checks and avoids unnecessary accessories when measuring nominal bore sizes between 8 and 10 mm.

Data capture and blind‑hole measurement capability

Equipped with an RB 6 data output, the gauge integrates with data‑collection systems for traceable logging and statistical process control. The digital interface supports quick transfer of values into inspection software or SPC workflows, simplifying documentation and audit trails. The instrument is explicitly designed for blind‑hole (sackhole) measurements, where internal depth and access are limited; the three‑point geometry and digital readout together ensure reliable results even when direct visual inspection is not possible.

Industrial metrology context and practical benefits

Placed within industrial metrology, this three‑point internal gauge delivers a balance of precision and usability for component manufacturers, toolmakers and inspection labs. The compact measurement range and fine resolution make it especially useful for small‑bore components, precision assemblies and tooling checks. By combining robust mechanical sensing with a clear digital interface and standardised data output, the instrument supports efficient quality routines and reduces administrative overhead associated with manual logging.

Contact Metav Werkzeuge for tailored advice on integrating the Metav IndustryLine three‑point internal gauge M312.211 into existing inspection procedures or to request a quotation and technical guidance from our specialists

Technical data

• Article number: M312.211
• GTIN: 4054469169088
• Brand: Metav IndustryLine

Core technical data

• Measuring range: 8–10 mm
• Resolution: 0.001 mm
• Stated accuracy: 0.004 mm
• Weight: 0.7 kg
• Length: 45 mm
• TARIC/Customs code: 90173000

Special features

• Digital display with ON/OFF/SET, HOLD and mm/inch functions
• RB 6 data output for external logging
• Suitable for blind‑hole measurements
• Delivered without setting ring and without extension
• Category: three‑point internal bore gauge / micrometre‑type instrument

FAQ

What is the measuring range of this gauge?
The gauge measures internal diameters from 8 to 10 mm, as specified for the Metav IndustryLine digital three‑point internal gauge M312.211.

How fine is the display resolution and what accuracy can be expected?
The instrument provides a 0.001 mm resolution on the digital display with a stated accuracy of 0.004 mm, suitable for routine production and inspection work.

Can the gauge record measurements electronically?
Yes. The device supports RB 6 data output, enabling integration with data‑collection systems for traceability and SPC workflows.

Is this instrument suitable for blind‑hole measurements?
Yes. The design is specifically intended for blind‑hole (sackhole) measurements, combining three‑point contact with a digital readout for reliable internal checks.

Does the delivery include a setting ring or extensions?
The gauge is supplied without a setting ring and without extensions, keeping the unit compact for direct bore inspections in the specified range.

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