325-350mm Digital Three-Point Internal Micrometer For Blind Holes With Carbide Faces, 0.001mm Readout, Supplied In Case - Metav IndustryLine

Take advantage of a high‑precision, wear‑resistant measuring solution that combines a three‑point contact system, carbide measuring faces and a digital readout with data output for efficient quality control. Order the instrument directly via Metav Werkzeuge or ask the consultants for additional technical details or integration options.

Digital three‑point internal micrometer M312.267.S – 325–350 mm range, blind‑hole carbide faces (Metav IndustryLine)

The Digital three‑point internal micrometer M312.267.S is a specialised measuring instrument designed for repeatable internal diameter measurements of blind holes and bores in production and inspection environments.

• Digital display with mm/inch and HOLD function
• Carbide measuring faces for long wear resistance
• Three‑point blind‑hole contact system
• Measuring range 325–350 mm, depth 140 mm

Precise blind‑hole measurement where concentric contact matters

The three‑point measuring head delivers a stable, repeatable contact geometry that centres automatically within the bore, reducing alignment errors typical of two‑point gauges. This design is particularly effective for blind‑hole applications, where axial access is limited; the measuring head contacts the bore at three equidistant points to provide a reliable diameter value with minimal influence from slight angular misalignment. The instrument’s accuracy of 0.012 mm ensures measurements meet workshop and production control tolerances, making it suitable for medium‑format internal measurement tasks where reproducibility is essential.

Digital readout and data connectivity for faster inspection cycles

The clear digital display with ON/0-, mm/inch-, ABS-, PRESET- and HOLD functions simplifies operator workflows and reduces interpretation errors. A display resolution of 0.001 mm provides fine increments for careful adjustment, while the data output RB 4 allows direct transfer of results to statistical process control systems or data loggers, speeding up inspection rounds and documentation. Together, these features lower cycle times in quality assurance and support traceable measurement records that integrate into existing production IT environments.

Durable construction for industrial use and reduced downtime

Measuring faces made from carbide (hard metal) offer superior wear resistance compared with softer materials, extending service life in high‑use settings and maintaining measurement accuracy over time. The instrument is engineered for robust workshop handling and a measuring depth of 140 mm, so larger blind holes can be reached without compromising stability. Weight and construction support comfortable handling while maintaining stiffness for repeatable readings, translating into fewer remeasurements and consistent output quality.

Practical integration into metrology workflows

The unit arrives configured for immediate use in routine inspection tasks and is supplied without a setting ring, allowing integration into existing calibration routines or adaptation to company‑specific master gauges. Operators benefit from the combination of a stable three‑point contact system and a digital interface that reduces subjective reading errors and simplifies documentation. This makes the instrument a pragmatic choice for machine shops, toolrooms and inspection departments that require reliable internal measurement of components during incoming inspection and in‑process control.

Contact Metav Werkzeuge in Emmerich to arrange a technical consultation, request detailed data or confirm compatibility with existing SPC systems for the M312.267.S three‑point internal micrometer

Technical Data

• Article number: M312.267.S
• GTIN: 4054469159065
• ECLASS: 21170335
• ETIM: EC003590
• Category: Micrometers

Facts

• Measuring range: 325–350 mm
• Measuring depth: 140 mm
• Display resolution: 0.001 mm
• Accuracy: 0.012 mm
• Weight: 5 kg
• Data output: RB 4

Special features

• Three‑point internal measuring head for blind holes
• Carbide (HM) measuring faces
• Digital display with ON/0-, mm/inch-, ABS-, PRESET-, HOLD functions
• Supplied without setting ring
• Suitable for routine production and inspection workflows

FAQ

What measuring range does this micrometer cover?
The M312.267.S covers a measuring range of 325–350 mm, designed for larger internal diameters and blind‑hole applications.

Is the instrument suitable for blind‑hole measurement?
Yes, the three‑point contact geometry of the M312.267.S is specifically designed to measure blind holes reliably and to centre automatically within the bore.

What accuracy and resolution can be expected?
The instrument provides an accuracy of 0.012 mm with a display resolution of 0.001 mm, suitable for production and laboratory inspection where fine resolution is required.

Does the micrometer provide data output for SPC systems?
The micrometer includes data output RB 4, enabling direct transfer of measurement data to compatible process control or logging equipment.

Which accessories are delivered with the micrometer?
Delivery is without a setting ring; other standard accessories are not listed in the product data and should be confirmed with Metav Werkzeuge if required.

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