30–40mm Digital Three-Point Internal Micrometer With Carbide Faces, RB6 Spindle, Digital Readout mm/inch - Metav IndustryLine

Take advantage of high metrological precision and robust shop-floor usability with this digital three-point internal micrometer: carbide measuring faces, 0.005 mm accuracy and RB 6 data output combine for reliable internal measurements and traceable data capture. Order the instrument directly via Metav Werkzeuge or consult our specialists for application advice.

Metav IndustryLine Digital Three‑Point Internal Micrometer M312.217 — digital, 30–40 mm range, RB 6 data output

Metav IndustryLine Digital Three‑Point Internal Micrometer M312.217 is a precision instrument for internal diameter measurement in small bores and blind holes, designed for workshop and quality‑assurance use.

• Digital readout with mm/inch and HOLD
• Carbide measuring faces for wear resistance
• Measurement range 30–40 mm, high precision
• Suitable for blind‑hole measurements (RB 6 output)

Faster, more reliable internal measurements through precise mechanics and clear data

The three‑point design gives reproducible contact with cylindrical bores, converting a complex probing task into a single, repeatable measurement. The instrument combines a measurement range 30–40 mm with a resolution of 0.001 mm on the digital display and a verified accuracy of 0.005 mm, which reduces rework and speeds up inspection cycles. The carbide measuring faces resist wear in frequent use, keeping inspection uncertainty low over long production runs. For applications where blind‑hole measurement is required, the built‑in geometry and contact arrangement deliver stable readings even when access is limited.

Built for shop‑floor integration and traceable data handling

A robust, easy‑to‑read digital display with ON/OFF, SET, HOLD and mm/inch selection allows quick switching between tasks and units. The micrometer is equipped with RB 6 data output, enabling direct capture of measurement results into inspection software or data loggers for statistical process control and documentation. This rational approach to measurement — combining fast readout, compact mechanics and digital interfacing — supports production lines that require both speed and documented traceability, helping quality teams meet internal and customer requirements with less manual transcription.

Practical durability and application benefits for everyday metrology

The instrument is supplied without a setting ring or extension and is optimised for blind‑hole checks and small bore diameters typical in precision assemblies. The solid feel and balanced mass contribute to consistent operator technique, while the carbide measuring faces focus wear resistance where it matters most. Weighing 2.3 kg and finished for industrial use, the device suits bench‑top inspection and tighter‑tolerance checking in toolrooms and small batch production. By concentrating on core functions — robust contacts, precise electronics and straightforward data output — the micrometer helps maintain throughput without sacrificing measurement confidence.

Contact Metav Werkzeuge to discuss integration options, request a technical datasheet or arrange procurement of the Metav IndustryLine M312.217 for precise internal measurements

Technical Data

• Article number: M312.217
• GTIN: 4054469169149
• Category: Micrometers (three‑point internal)
• Manufacturer: Metav IndustryLine

Facts

• Measurement range: 30–40 mm
• Resolution (display): 0.001 mm
• Accuracy: 0.005 mm
• Weight: 2.3 kg
• Tariff number: 90173000

Special features

• Carbide measuring faces (HM)
• Digital display with ON/OFF, SET, HOLD and mm/inch
• RB 6 data output
• Suitable for blind‑hole measurements
• Delivered without setting ring and without extension
• Label: Digital three‑point internal micrometer, 30–40 mm

FAQ

What level of accuracy can be expected from this three‑point internal micrometer?
The instrument offers an accuracy of 0.005 mm and a display resolution of 0.001 mm, making it suitable for fine internal diameter control and repeatable quality checks.

Can the micrometer measure blind holes?
Yes, the design is specifically suited to blind‑hole measurements and is indicated for such applications, providing stable contact and reliable readings in restricted access bores.

How are measurement results exported from the device?
Results can be transferred via the RB 6 data output, allowing direct capture into compatible data acquisition systems or inspection software for traceability.

Is the display convertible between units?
The digital display supports both mm and inch via the mm/inch button, and includes HOLD and SET functions for convenient measurement routines.

What materials are the measuring faces made from?
The measuring faces are carbide, chosen for high wear resistance and long service life under frequent use.

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