300-325 mm Digital Three-Point Internal Gauge For Blind Holes, Carbide Measuring Faces, Data Output RB 4 - Metav IndustryLine

Take advantage of precise blind‑hole measurement with a 300–325 mm range and robust carbide measuring faces that deliver repeatable results; the instrument's 0.012 mm accuracy and digital readout speed up inspection cycles. Order the digital three‑point internal micrometer directly via Metav Werkzeuge or consult our specialists for application advice.

Digital three‑point internal micrometer M312.266.S — 300–325 mm range, carbide faces (Metav IndustryLine)

The Digital three‑point internal micrometer M312.266.S is a purpose‑built instrument for accurately measuring blind holes in production and workshop inspection, combining a long reach with a stable three‑point contact system.

• 300–325 mm measuring range
• Carbide measuring faces for wear resistance
• Digital display with mm/inch and hold functions
• Designed for blind‑hole measurement

Precision where blind‑hole accuracy matters

A three‑point contact system converts radial geometry into a single, repeatable diameter value, making it ideal for Sackloch (blind‑hole) inspection where single‑point probes can slip. The device achieves an accuracy of 0.012 mm, which supports reliable quality control across medium‑sized components. The 300–325 mm range places this instrument in the mid‑range class, suitable for larger fixtures and mould halves while retaining manoeuvrability. With carbide measuring faces, the contact surfaces resist wear under repeated use, extending service intervals and reducing measurement drift.

Faster readings and fewer processing errors

The digital readout is equipped with ON/0, mm/inch, ABS, PRESET and HOLD keys to streamline reading and data capture. Quick unit switching and preset functions reduce calculation steps and speed up batch inspections, while the hold feature freezes unstable readings for clear documentation. The instrument's resolution of 0.001 mm (display) ensures discernible changes are visible to the operator, supporting faster decision‑making on the shop floor. These features lower cycle time and minimise manual transcription errors when results are transferred to inspection reports.

Built for workshop integration and traceable results

Connectivity is provided via RB 4 data output, enabling direct transfer of measurement values into SPC or inspection software for traceability. The micrometer is supplied without an adjustment ring and is delivered in a transport case for secure handling and storage, aiding organisation in busy production environments. Weighing approximately 5 kg, the instrument is stable during measurement yet portable enough for bench or in‑machine use. This combination of digital interfacing and robust construction makes it suited to repeatable inline checks and workshop quality assurance.

For precision blind‑hole measurement choose the Metav IndustryLine digital three‑point internal micrometer and request tailored supply or technical consultation from Metav Werkzeuge GmbH by e‑mail at info@metav-werkzeuge.com or by phone on +49 2822 7131930

Technical data

• Article number: M312.266.S
• GTIN: 4054469159058
• Tariff code: 90173000
• Manufacturer: Metav IndustryLine

Facts

• Measuring range: 300–325 mm
• Measuring depth: 140 mm
• Readout resolution: 0.001 mm
• Stated accuracy: 0.012 mm
• Weight: 5 kg
• Digital: yes
• Data output: RB 4

Special features

• Three‑point internal measurement
• Carbide measuring faces
• Digital display with ON/0, mm/inch, ABS, PRESET, HOLD
• Delivery without setting ring
• Supplied in transport case
• Designed for blind‑hole measurement
• Category: Micrometers (internal)

FAQ

How does the three‑point measurement improve blind‑hole readings?
Three contact points average circumferential variation into a single diameter value; the design of the Digital three‑point internal micrometer M312.266.S reduces positional error in blind‑hole applications and yields more repeatable results than single‑point probes.

Is the device compatible with data acquisition systems?
Yes. The instrument features RB 4 data output, allowing measured values from the Metav IndustryLine digital three‑point internal micrometer to be transferred directly to inspection software or SPC systems.

What is included with delivery and what is missing?
Delivery includes the instrument in a transport case for secure handling. The micrometer is supplied without a setting ring; if a reference ring is required it must be ordered separately.

For which workshop tasks is this instrument best suited?
The micrometer is intended for medium‑range internal inspections—vices, housings and blind holes—where 300–325 mm reach and high repeatability are required; it balances reach and stiffness for typical machining and assembly inspection tasks.

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