10-12mm Three-Point Internal Micrometer Digital Reading With Measurement Drum Scale, IP65 - Metav IndustryLine

Combine three-point contact with a digital readout and IP65 protection to obtain reproducible measurements of blind bores in the 10–12 mm range; the compact design and included setting ring and extension simplify setup and increase throughput. Order the three-point internal micrometer directly via Metav Werkzeuge or ask our consultants if needed.

Three-point internal micrometer M312.232.M — digital readout, IP65 protection (Metav IndustryLine)

The Three-point internal micrometer M312.232.M is a compact, workshop-grade gauge for precise inspection of blind bores and small internal diameters in the 10–12 mm range.

• Three-point contact for blind-bore measurement
• Digital display with ABS/INC/UNIT buttons
• IP65 rating for robust workshop use

Precision where it matters

The instrument delivers an accuracy of 0.004 mm, making it suitable for fine internal measurements where reproducibility is essential. The three-point measuring system centres reliably in blind holes, reducing eccentricity errors typical of two-point methods; combined with the digital display and its ABS/INC/UNIT functions, readings are quick and unambiguous. Built to DIN 863 standards, this gauge supports quality control routines that demand traceable, repeatable results and helps cut downstream rework through reliable first-pass verification.

Designed for everyday workshop use

Robustness and legibility are central to the design: the scale and vernier are matt chrome plated to minimise glare, while the overall instrument benefits from an IP65 rating so that dust and coolant splash do not compromise its electronics. At a compact length and modest mass, the gauge is easy to handle yet substantial enough to remain stable during measurement. The visible measuring drum with scale aids coarse setting, reducing the time spent on manual adjustments and improving throughput on repetitive inspections.

Practical features that speed measurement

For blind-bore applications the tool includes a setting ring and an extension (100 x Ø5.7) to reach recessed features without loss of accuracy. The electronics offer convenient functions — ON/OFF/SET and absolute/incremental switching — and a data output RB 4.1, which permits connection to data collection systems for process documentation and trend analysis. These capabilities turn the gauge from a single reading device into an integrated component of a digital inspection workflow.

Micro-class instrument for fine mechanical work

With a measurement range of 10–12 mm, the gauge falls into the Micro class of internal measuring instruments, a category prized for its compactness and stiffness. This makes it particularly suitable for watchmaking, microcomponents and hydraulic fittings where short jaws and controlled contact force yield the best reproducibility. The combination of a solid mechanical design and digital electronics supports both bench inspection and short-series production checks, while the included accessories accelerate set-up times and reduce handling errors.

Choose the Metav IndustryLine three-point internal micrometer for dependable blind-bore measurement and contact Metav Werkzeuge for tailored technical advice and procurement: info@metav-werkzeuge.com • +49 2822 7131930

Technical data

• Article number: M312.232.M
• GTIN: 4054469156385
• Brand: Metav IndustryLine
• Standard: DIN 863

Facts

• Measurement range: 10–12 mm
• Accuracy: 0.004 mm
• Length: 55 mm
• Weight: 0.9 kg
• Protection class: IP65
• Display resolution: 0.001 mm (device digitalisation as supplied)
• Data interface: RB 4.1

Special features

• Three-point measuring system for blind bores
• Digital display with ON/OFF/SET and ABS/INC/UNIT buttons
• Measuring drum with scale
• Scale and vernier matt chrome plated
• Includes setting ring and extension (100×Ø5.7)
• Delivered in a protective case
• Conforms to DIN 863
• Suitable for blind-hole measurement applications

FAQ

How does the three-point measuring system improve accuracy for blind bores?
The three-point contact automatically centres in the bore, lowering eccentricity and providing more stable readings than two-point methods; the M312.232.M uses this principle to deliver consistent results in blind-hole checks.

Is the instrument suitable for use in a coolant-rich environment?
Yes, the digital internals and enclosure are rated IP65, so the gauge tolerates splash and dusty workshop conditions while maintaining measurement integrity.

What accessories are supplied for setting and extended reach?
The delivery includes a setting ring and an extension (100×Ø5.7) to position the measuring contacts in recessed bores without compromising accuracy.

Can measurement data be exported from the device?
The instrument is equipped with a data output RB 4.1, enabling recorded values to be transferred to data-collection systems for documentation and quality records.

For which applications is the gauge intended?
Classified as a Micro-range tool (10–12 mm), it is intended for precise internal measurements in fine mechanical work, small hydraulic components and other applications requiring tight reproducibility.

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