175-200mm Three-Point Internal Micrometer Digital With ON/mm/inch/ABS/PRESET/HOLD, Case - Metav IndustryLine

Take advantage of the combination of centred three‑point contact, high repeatability and a clear digital readout to speed up in‑line inspections and reduce rework. Order this measuring instrument via Metav Werkzeuge or consult our specialists for matching accessories and delivery options.

Three‑point internal micrometer M312.259 — Digital readout, 175–200 mm range (Metav IndustryLine)

A three‑point internal micrometer designed for precise internal diameter measurement in workshop and inspection environments, suitable for bores and rings in the 175–200 mm range.

• Digital display with mm/inch and ABS
• Three‑point contact for centred readings
• Measurement range 175–200 mm
• Protective transport case included

Centre‑true measurements for reliable bore control

The three‑point contact spindle locates concentrically in the bore, producing centre‑true readings that reduce errors from eccentricity and ovality. With an accuracy of ±0.007 mm, the instrument is suited to demanding dimensional checks where repeatability matters; the mechanism converts contact to a stable reading, so fewer repeated measurements are necessary and inspection throughput increases. This approach benefits quality assurance by lowering the frequency of rework and speeding approval of machined components.

Fast digital reading and secure data transfer

A digital display with 0.001 mm resolution ensures fast, unambiguous readings and reduces transcription errors common with analogue gauges. The readout offers ON/0-, mm/inch-, ABS-, PRESET- and HOLD functions for flexible measuring workflows and temporary value locking. An RB 4 data output is provided for integration with external readout systems or SPC collection, enabling traceable data capture and simpler documentation of inspection results without manual re‑entry.

Built for deep bores and workshop handling

The gauge covers the 175–200 mm measurement range with a measuring depth of 140 mm, making it suitable for medium‑sized bores, rings and internal features found in tooling and mechanical assemblies. At 3.1 kg the instrument feels robust in the hand and is supplied in a protective transport case for safe storage and movement between the measuring bench and shop floor. Note that the delivery is without a setting ring, so specify the required master ring separately if a reference standard is needed for onsite zeroing.

For dependable internal measurement and integrated data capture, contact Metav Werkzeuge to discuss the M312.259 and ensure the right accessories and delivery format for your inspection process.

Technical Data

• Article number: M312.259
• GTIN: 4054469120010
• eCl@ss: 21170335
• ETIM: EC003590
• Tariff code: 90173000

Core specifications

• Measurement range: 175–200 mm
• Measuring depth: 140 mm
• Resolution: 0.001 mm
• Accuracy: ±0.007 mm
• Weight: 3.1 kg

Features / Special items

• Digital display with ON/0-, mm/inch-, ABS-, PRESET- and HOLD
• Data output: RB 4
• Protective transport case included for transport
• Setting ring: not included
• Measuring faces present

FAQ

How precise is the M312.259 for internal measurements?
The M312.259 three‑point internal micrometer achieves an accuracy of ±0.007 mm with a display resolution of 0.001 mm, suitable for routine quality control and fine inspection tasks.

Is the instrument supplied with a calibration certificate?
The instrument is supplied with the standard factory calibration; an ISO 17025 calibration is not indicated for this item.

What is included in the delivery package?
Delivery includes the micrometer in a protective transport case; the setting ring is not included and must be ordered separately if required.

Can this micrometer reach deep internal features and larger bores?
Yes — the measuring depth of 140 mm combined with the 175–200 mm range makes it appropriate for medium‑sized bores, rings and internal features common in moulds and assemblies.

How can measurement values be exported from the micrometer?
The gauge is equipped with an RB 4 data output for connection to compatible readout systems, enabling direct transfer of measurements to SPC or documentation tools.

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