12–16 mm Digital Three-Point Internal Micrometer Carbide Measuring Faces, RB6, No Setting Ring - Metav IndustryLine

Benefit from ±0.005 mm repeatability, 0.001 mm resolution and wear‑resistant carbide measuring faces for reliable bore control; order the digital three‑point internal micrometre directly via Metav Werkzeuge or ask our consultants if needed.

Digital three-point internal micrometre M312.213 — 12–16 mm, carbide measuring faces (HM), RB6 output — Metav IndustryLine

The Digital three‑point internal micrometre M312.213 is a compact digital instrument for precise internal measurements of bores and blind holes in the 12–16 mm range.

• High resolution 0.001 mm digital readout
• Carbide measuring faces (HM) for long life
• Accuracy ±0.005 mm for repeatable results
• Designed for blind‑hole measurement

Repeatable bore measurement where it matters

The instrument is tailored to internal bore control with a measuring range of 12–16 mm and a 0.001 mm display resolution, delivering an accuracy of ±0.005 mm. This combination places the tool in the compact, precision class commonly used for micro‑mechanical tasks: the range and stiffness correspond to the "micro" category, offering the best compromise between reach and rigidity for small bores. The three‑point measuring principle centres automatically in the bore, reducing operator error and improving repeatability compared with two‑point checks.

Durable contact faces and clear digital operation

Equipped with carbide (HM) measuring faces, the gauge resists wear during frequent use so measurement geometry stays stable over time. The digital display provides ON/OFF/SET, HOLD and mm/inch functions for quick unit changes and secure value capture; a data output marked RB 6 enables integration with collection systems where required. These features reduce cycle time and simplify documentation, while the hardened contact surfaces preserve calibration and reduce rework caused by worn faces.

Practical for blind holes and workshop inspection

The tool is expressly suitable for blind‑hole measurement, making it appropriate for internal checks where full through‑access is not possible. The compact construction and short frame length (45 mm) keep handling straightforward, and the instrument’s mass (approx. 1 kg) ensures a stable feel without being cumbersome. For routine quality control and in‑process checks, the three‑point contact provides consistent centring and a fast method for establishing bore runout and diameter that integrates well into shopfloor inspection routines.

Handling, scope and maintenance notes

Delivered without a setting ring and without extensions, the gauge is ready to use for direct bore measurement within its 12–16 mm range; accessories may be fitted as required for specific workflows. Regular cleaning of the carbide faces and light lubrication of the spindle will maintain measurement quality. The combination of high resolution and robust contacts makes this instrument suitable for repeatable workshop measurement tasks and for integration into documented inspection procedures where traceable, repeatable data are required.

Contact Metav Werkzeuge for tailored advice on integrating the Metav IndustryLine digital three‑point internal micrometre M312.213 into measurement routines and to discuss measurement accessories or data‑capture options

Technical data

• Article number: M312.213
• GTIN: 4054469169101
• Tariff number: 90173000

Facts

• Measuring range: 12–16 mm
• Resolution: 0.001 mm
• Accuracy: ±0.005 mm
• Length: 45 mm
• Weight: 1 kg

Special features

• Carbide measuring faces (HM)
• Digital readout with ON/OFF/SET, HOLD, mm/inch
• Data output: RB 6
• Without setting ring
• Without extension
• Suitable for blind‑hole measurement

FAQ

How precise is the measurement from this instrument?
The instrument provides a resolution of 0.001 mm and an accuracy of ±0.005 mm, making the M312.213 suitable for precision bore control where tight repeatability is required.

Can the gauge measure blind holes?
Yes, the three‑point design and contact geometry are specifically suited to blind‑hole measurement, allowing reliable internal checks where through‑access is not available.

What are the contact faces made of and why does that matter?
The measuring faces are carbide (HM), chosen for wear resistance and dimensional stability; carbide contacts preserve shape under repeated use and extend service intervals.

Is the readout adaptable to different unit systems?
The digital display supports mm/inch selection and includes a HOLD function for stabilising readings; the RB 6 output also supports data transfer where needed.

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