12–20 mm Three-Point Internal Measuring Set Digital, Carbide Measuring Faces, IP65, Includes Setting Ring & Extension - Metav IndustryLine

Taking advantage of high-resolution measurement, durable carbide contact faces and robust IP65 protection ensures reliable results even in dusty or damp workshop conditions; combine these qualities with the compact 12–20 mm range for efficient inspection of small bores. Order this measuring set directly via Metav Werkzeuge or contact our consultants for specification support.

Digital three-point internal measuring set M312.275.PN — Two-piece, IP65, carbide faces

Digital three-point internal measuring set M312.275.PN is a compact precision instrument for internal diameter inspection in the 12–20 mm range, engineered for blind-hole and small-bore applications.

• Digital readout with mm/inch and HOLD
• IP65 protection against dust and water
• Carbide measuring faces for wear resistance
• Suited for blind-hole measurements
• Includes setting ring and extension

Precision in small bores for consistent quality

The Digital three-point internal measuring set M312.275.PN offers a three-point measurement principle that centres reliably in small diameters and minimises measurement scatter compared with single-contact probes. Specified for the 12–20 mm range, this tool belongs to the micro class of internal gauges and is suitable where short, torsion‑resistant jaws are required for fine mechanical work. Its fine 0.001 mm resolution gives very detailed readbacks for close tolerance inspection, while compliance with DIN 863 signals conformity with established workshop measurement standards. The use of carbide measuring faces ensures longevity and consistent contact geometry over repeated cycles, reducing the need for frequent maintenance.

Traceable digital output and efficient inspection workflow

The instrument combines a clear digital readout with practical controls — ON/PRESET, mm/inch and HOLD — to speed routine checks and reduce handling time during inspections. For automated quality processes, the integrated RB 6 data output allows direct transfer of measured values into inspection software or data loggers, supporting traceability and statistical process control. These features translate into measurable efficiency gains on the production line: fewer manual transcription errors, faster sampling and straightforward inclusion in quality documentation.

Robust design made for the workshop

Engineered for everyday use in industrial environments, the measuring set carries an IP65 rating to keep dust and spray away from sensitive electronics, extending service intervals and improving uptime. The kit is supplied as a two-piece set and is delivered with a setting ring and an extension (150 x Ø11.8) to adapt quickly to varying workpieces and blind-hole depths. The combination of protected electronics, hardened carbide faces and a practical transport case makes this set a durable choice for small-bore measurement tasks in toolrooms, assembly stations and fine‑mechanical workshops.

Contact Metav Werkzeuge for technical consultation and to arrange procurement of the M312.275.PN two-piece digital three-point internal measuring set — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• SKU: M312.275.PN
• GTIN: 4054469179209
• ECLASS: 21170335
• ETIM: EC003590
• Norm: DIN 863

Facts

• Measuring range: 12–20 mm
• Resolution: 0.001 mm
• Data output: RB 6
• Protection: IP65
• Display functions: ON/PRESET, mm/inch, HOLD
• Pieces per set: 2

Special features

• Carbide (HM) measuring faces
• Suitable for blind‑hole measurements
• Includes setting ring and extension (150 x Ø11.8)
• Delivered in a transport case
• Digital two‑point readout with HOLD function

FAQ

How accurate is the measurement display for very small bore checks? The display provides a resolution of 0.001 mm, giving the three-point internal measuring set M312.275.PN the fine granularity needed for precise small‑bore inspection.

Can the instrument be used in damp or dusty workshop environments? Yes, the unit is rated IP65, so the electronics are protected against dust ingress and low‑pressure water jets, suitable for standard workshop conditions.

Is this set appropriate for blind‑hole measurements? The design is explicitly suited for blind‑hole measurements and includes an extension to reach deeper bores where required.

What data output options are available for quality documentation? The tool offers an RB 6 data output for direct value transfer to inspection systems, supporting traceability and process control.

Which accessories are supplied with the measuring set? The set includes a setting ring and an extension (150 x Ø11.8), supplied together in a transport case for safe handling and storage.

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