50-100mm Digital Three-Point Internal Measuring Set With Carbide Measuring Faces, IP65, 4pc - Metav IndustryLine

Take advantage of the combination of precise three-point centring, workshop-proof protection and a high-resolution digital readout to speed up inspection cycles and reduce rework. The set’s carbide measuring faces and IP65 rating ensure long service life in industrial environments; order the set directly via Metav Werkzeuge or consult customer service for integration options.

Digital three-point internal measuring set M312.277.PN — three-point internal micrometer, 50–100 mm, IP65, carbide faces (Metav IndustryLine)

The Digital three-point internal measuring set M312.277.PN is a precision instrument for internal diameter measurement in production environments and quality control, designed to measure blind holes and stepped bores within the 50–100 mm range.

*IP65 protection for reliable workshop use *Carbide measuring faces for long-lasting accuracy *Digital display with ON/PRESET, mm/inch and HOLD

Stable centring for reproducible internal diameters

The three-point measuring principle provides consistent centring, reducing eccentricity errors common with two‑point gauging. Intended as a micro-class instrument (measuring range up to 100 mm), this set is especially suitable where compactness and high repeatability matter, such as in precision component manufacture and toolmaking. The mechanism’s geometry minimises tilting in bore measurement and supports reliable results on blind-hole applications, which is critical when tight tolerances are enforced under DIN 863.

Precise readings and durable contact surfaces

With a display resolution of 0.001 mm, the instrument offers a fine-scale readout that supports tight inspection limits and shortens decision loops in production. The carbide measuring faces give high wear resistance against repeated contact, maintaining measuring quality over extended use. Protection to IP65 allows operation in dusty or splash-prone workshop settings without compromising the electronics, so measurement integrity is preserved even in less-than-ideal conditions.

Digital convenience and traceable output

The digital indicator includes ON/PRESET, mm/inch conversion and HOLD functions for flexible operation at the bench or on the machine. Data output via RB 6 enables integration into SPC or data-collection systems for process monitoring and traceability. The set is supplied complete with an adjustment ring and an extension, facilitating rapid set-up for different bore depths and reducing non-productive time during inspection sequences.

Robust set-up for routine quality control

Delivered as a four-piece set, the instrument covers the 50–100 mm range with individual heads designed for efficient swapping and minimal recalibration. The construction supports frequent handling and inspection cycles while maintaining measurement stability, which lowers rework rates and supports consistent throughput. Metav IndustryLine’s product range is part of a broader promise to make high-precision metrology accessible to workshops and small-scale manufacturers without compromising on industrial reliability.

For procurement or technical integration, contact Metav Werkzeuge today to discuss the M312.277.PN set, system compatibility and delivery from Emmerich; our consultants will advise on the best configuration for production needs.

Technical Data

• SKU: M312.277.PN
• GTIN: 4054469179223
• Set composition: 4 pieces
• Measuring range: 50–100 mm
• Weight: 5.6 kg
• Standard: DIN 863

Facts

• Resolution: 0.001 mm
• Protection class: IP65
• Tariff number: 90173000
• Display functions: ON/PRESET, mm/inch, HOLD
• Data output: RB 6

Special features

• Carbide (HM) measuring faces
• Suitable for blind-hole (sackloch) measurement
• Includes adjustment ring and extension
• Digital indicator, preset and unit conversion
• Designed for workshop and production use

FAQ

What accuracy can be expected from this set?
The four-piece three-point set provides a display resolution of 0.001 mm and is built to achieve repeatable measurements suitable for precision inspection tasks; the exact tolerance depends on application and method used.

Is the set suitable for blind-hole measurement?
Yes, the instrument was designed for blind-hole (sackloch) bores and includes extensions and an adjustment ring to adapt to varying depths.

How is the reading presented and exported?
The digital indicator offers ON/PRESET, mm/inch conversion and HOLD. Data export is available via the RB 6 interface for process recording.

Are the measuring faces resistant to wear?
The measuring faces are made of carbide, which delivers high wear resistance and long service life under repeated use.

Can the set be used in a workshop environment?
With an IP65 rating and robust construction, the set is suited to dusty or splash-prone workshop conditions while protecting the electronics.

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