62-75mm Digital Three-Point Internal Micrometer, Carbide Faces, IP65, Setting Ring, Supplied in Case - Metav IndustryLine

Benefit from repeatable bore measurement, IP65 protection and wear‑resistant carbide faces for dependable workshop results; order or request advice via Metav Werkzeuge for prompt supply and technical guidance.

M312.240.PN — Digital three‑point internal micrometer, 62–75 mm, IP65 (carbide faces)

The M312.240.PN is a digital three‑point internal micrometer designed for precise bore measurement in the 62–75 mm range, combining a robust IP65 enclosure with hard‑faced carbide measuring points for long service life

• Digital display with mm/inch and HOLD
• IP65 dust and splash protection
• Carbide measuring faces for wear resistance
• Includes setting ring and extension
• Suitable for blind‑hole (sack) measurements

Reliable three‑point measuring for repeatable results

The three‑point contact principle distributes measuring force evenly around the bore, reducing eccentricity and providing a stable reference even in short or poorly centred holes. With a declared accuracy of ±0.005 mm and a measuring range of 62–75 mm, this instrument is tuned for tasks where reproducibility matters. The hardened contact faces minimise wear, so calibration intervals extend in demanding production environments and measurements remain consistent over time.

Built for workshop conditions and long service life

An IP65 enclosure protects electronics from dust and low‑pressure water jets, enabling use at the machine bench without concern for accidental coolant spray or dust ingress. The carbide (HM) measuring faces resist abrasion when contacting machined bores, maintaining tip geometry under frequent use. A protective transport case is supplied for safe handling and storage, helping to preserve accuracy during transport between measuring stations.

Clear readout and data handling for process control

The instrument features a digital display with ON/PRESET, mm/inch conversion and a HOLD function for convenient reading in awkward positions. A compatible data output (RB 6) allows integration with data‑collection systems or a portable logger for traceable quality control. Included accessories — a setting ring and an extension — facilitate quick setup and length adaptation so the measuring chain is ready for production checks without additional tooling.

Practical classification and typical applications

With its 62–75 mm range the device sits in the compact end of workshop metrology, offering the reach of a standard internal micrometer while keeping handling and stiffness optimised for smaller bores. It is suitable for blind‑hole inspection, finishing checks on housings, and run‑out assessment on assembled components. The combination of wear‑resistant faces, IP65 protection and digital readout makes this an efficient choice for maintenance departments, toolrooms and small‑batch manufacturing.

Contact Metav Werkzeuge for technical consultation on integrating the Metav IndustryLine M312.240.PN into the inspection routine or to arrange delivery from Emmerich.

Technical data

• SKU: M312.240.PN
• GTIN: 4054469179162
• Category: Messschrauben

Facts

• Measuring range: 62–75 mm
• Resolution (display): 0.001 mm
• Accuracy: ±0.005 mm
• Weight: 3.5 kg
• Protection class: IP65
• Standard: DIN 863

Special features

• Digital readout with ON/PRESET, mm/inch and HOLD
• Carbide (HM) measuring faces
• Includes setting ring and extension (150×Ø23.5)
• Suitable for blind‑hole measurement
• Data output: RB 6
• Delivered in protective case
• Three‑point internal measuring principle

FAQ

What accuracy can be expected from this instrument? The specified accuracy for the M312.240.PN is ±0.005 mm; repeatable measurements are supported by the three‑point measuring principle and carbide faces.

Is the micrometer suitable for blind‑hole (sack) measurements? Yes — the instrument is designed to measure blind holes and is delivered with a setting ring and an extension to assist setup for such applications.

How is the display configured and can measurement data be exported? The digital display offers ON/PRESET, mm/inch conversion and a HOLD function; data output is provided via RB 6 for connection to data loggers or SPC systems.

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