10–12mm Three-Point Internal Digital Gauge With Setting Ring, IP65 - Metav IndustryLine

Taking advantage of the combination of high‑precision measurement, robust ingress protection and integrated calibration accessories results in reliable internal diameter inspection and reproducible production checks. Order the instrument directly via Metav Werkzeuge or consult our specialists for application advice.

M312.232.PN — Digital three‑point internal micrometer 10–12 mm, IP65 (Metav IndustryLine)

A Digital three‑point internal micrometer M312.232.PN designed for precise measurement of small bores and blind‑hole inspection in workshop and production environments.

• Three‑point internal measurement for secure centring
• IP65 protection for dust and water resistance
• 0.004 mm accuracy for high‑precision results
• Includes setting ring and extension for calibration

Precise, repeatable internal measurements for small bores

The instrument is optimised for narrow internal diameters from 10 to 12 mm, providing a three‑point contact system that centres reliably in the bore and reduces measurement scatter compared with two‑point probes. With a measurement resolution of 0.001 mm and an overall accuracy of 0.004 mm, the device suits demanding quality control tasks where repeatability and traceability matter. The compact measuring span places this model in the micro category — ideal for delicate components and fine mechanical assemblies where a short, stiff measuring geometry improves handling and accuracy.

Robust construction and intuitive digital operation

Housed to IP65 rating, the instrument tolerates workshop conditions with protection against dust ingress and water jets, which extends service life in routine production environments. The digital display offers ON/PRESET, mm/inch switching and HOLD functionality, enabling quick read‑outs and straightforward recording during batch inspections. A dedicated RB 6 data output is provided for integration with data loggers or inspection software, supporting digital documentation of measured values and easing statistical process control workflows.

Built‑in calibration aids and blind‑hole capability

Delivered with a setting ring and a purpose‑matched extension (100×Ø5.8), calibration and setup are simplified, so measurement uncertainty is reduced from the first use. The design explicitly supports blind‑hole measurement, where secure centring and probe geometry are essential to reach and measure recessed bores reliably. Conformance to DIN 863 ensures the device meets recognised workshop standards for mechanical micrometers, giving a verifiable basis for quality checks.

Practical benefits for production and inspection

The compact, lightweight construction (approx. 0.7 kg) makes handling easy during repeated checks, while the three‑point contact and digital readout shorten cycle times for small‑part inspection. The combination of secure centring, high resolution and electronic output turns manual measurement into an efficient step in the measurement chain — suitable for inspection benches, assembly control stations and toolroom verification. Backed by Metav IndustryLine distribution, the product is positioned as a practical precision tool for workshops seeking dependable measurement without complex integration.

For reliable internal bore inspection with Metav IndustryLine precision and integrated calibration accessories, contact Metav Werkzeuge for tailored advice and procurement assistance at their Emmerich location.

Technical data

• Article number: M312.232.PN
• GTIN: 4054469179087
• Manufacturer: Metav IndustryLine
• Label: Digital three‑point internal measurement 10–12 mm IP65 with setting ring

Facts

• Measuring range: 10–12 mm
• Accuracy: 0.004 mm
• Resolution (display): 0.001 mm
• Weight: 0.7 kg
• Protection class: IP65
• Data output: RB 6
• Standard: DIN 863

Special features

• Digital display with ON/PRESET, mm/inch and HOLD
• Three‑point internal measuring system
• Setting ring included
• Extension included (100×Ø5.8)
• Suitable for blind‑hole measurement
• Category: Micrometers (Messschrauben)

FAQ

What measuring range does the instrument cover?
The instrument measures internal diameters from 10 to 12 mm and is intended for fine‑bore inspection.

Is the device suitable for blind‑hole bores?
Yes, the M312.232.PN is suitable for blind‑hole measurement thanks to its three‑point centring geometry and included extension.

What level of protection does the housing provide?
The housing is rated IP65, offering dust protection and resistance to water jets for use in workshop conditions.

Can measurement values be recorded electronically?
Yes, the device provides a RB 6 data output for connection to data acquisition systems or inspection software.

Which standards does the micrometer comply with?
The instrument is supplied to the requirements of DIN 863 for mechanical micrometers and workshop measuring tools.

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