20–50mm Digital Three-Point Internal Quick-Measure Gauge Rotating 330° Display, RB6/Bluetooth, Plastic Case - Metav IndustryLine

The combination of high repeatability (±0.005 mm), a rotatable 330° display and Bluetooth/RB 6 data output ensures rapid, traceable internal measurements for production and quality control. Order the set directly via Metav Werkzeuge or consult our advisors for application-specific recommendations.

Digital Three‑Point Internal Quick Measuring Gauge Set M312.346 – 20–50 mm range, Bluetooth data output

The Digital Three‑Point Internal Quick Measuring Gauge Set M312.346 is a compact, pistol‑style set for fast internal dimension checks in blind holes and bores across the 20–50 mm band.

• Rotatable 330° display for flexible reading
• Bluetooth and RB 6 data output for traceable capture
• High repeatability: ±0.005 mm accuracy
• Four pistol‑style three‑point gauges in a transport case

Rapid, repeatable internal measurements that speed inspection

The set delivers fast comparative readings thanks to its three‑point measuring principle, which centres the probe heads automatically in a bore and reduces positioning variability compared with single‑point methods. This design shortens cycle times in routine checks and calibration runs while maintaining high repeatability (±0.005 mm). The 20–50 mm measuring range places these instruments in the micro category, making them particularly suited to precision work on small components, where the short legs preserve stiffness and reduce measurement error.

Reliable accuracy combined with modern data capture

A clear benefit for production environments is the combination of fine resolution and digital connectivity. The instruments provide a resolution of 0.001 mm on the display and offer Bluetooth plus RB 6 data output for direct transfer into inspection software or data loggers. The display is rotatable by 330°, enabling ergonomic reading in confined fixturing, and the control panel includes ON/OFF, SET, CAL, INC, PRESET, HOLD, mm/inch and TOL keys for versatile setup and tolerancing. Power is supplied by a 3 V CR2032 battery, keeping maintenance straightforward.

Workshop‑ready kit for blind‑hole inspection and routine QA

The delivery comprises four pistol‑style digital three‑point gauges (setting ring and extension not included) presented in a protective transport case, allowing controlled storage and safe transfer between workstations. The set is optimised for blind‑hole measurements, where the three‑point geometry ensures consistent contact and repeatable centring even in short or stepped bores. The compact format and integrated data output simplify integration into existing quality workflows for machine shops, tool rooms and inspection stations.

Contact Metav Werkzeuge for tailored advice and to request a specification sheet or a quotation for the M312.346 set with Bluetooth/RB 6 connectivity

Technical data

• Article number: M312.346
• GTIN: 4054469181684
• Weight: 2.39 kg
• Content: 4x digital pistol three‑point quick gauges (setting ring and extension not included)
• Battery: 3 V CR 2032

Numbers / Core technical data

• Measuring range: 20–50 mm
• Resolution: 0.001 mm
• Repeatability / accuracy: ±0.005 mm
• Pieces per set: 4

Special features / Versions

• Digital display with ON/OFF/SET, CAL, INC, PRESET, HOLD, mm/inch and TOL functions
• Display rotatable by 330°
• Data output: RB 6 and Bluetooth
• Suited for blind‑hole measurements
• Delivered in a transport case

FAQ

What measurement tasks are these gauges best for?
The M312.346 set is optimised for internal measurements, especially blind‑hole bores, where the three‑point contact ensures centring and rapid, repeatable readings.

How is measurement data transferred from the gauges?
Data can be exported via Bluetooth or the RB 6 interface for direct capture into inspection software or data loggers, enabling traceable documentation of results.

What accuracy and resolution can be expected?
The gauges provide a resolution of 0.001 mm and a repeatability/accuracy of ±0.005 mm, suitable for high‑precision workshop and production checks.

Are setting rings or extensions included?
The delivery contains four digital three‑point gauges; a setting ring and any extensions are not included and must be ordered separately if required.

How is the set supplied for transport and storage?
The instruments are supplied in a protective transport case to secure the gauges during storage and transfer between workstations.

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