2.5–3.0 mm Internal Micrometer With Carbide Measuring Faces, Setting Ring, 0.004 mm Accuracy - Metav IndustryLine

Take advantage of the combination of high measuring accuracy, carbide measuring faces and a supplied 2.5 mm setting ring for reliable bore checks; order the instrument directly via Metav Werkzeuge or contact our consultants for application advice.

M312.123 Inside Micrometer – 2.5–3.0 mm with carbide measuring faces

M312.123 is an analogue inside micrometer designed for precise internal measurements of small bores, including blind holes, in workshop and inspection environments.

• Carbide measuring faces for wear resistance
• Measurement range 2.5–3.0 mm
• Includes 2.5 mm setting ring
• Delivered in protective case

Consistent high accuracy for small-bore inspection

The instrument delivers a verified accuracy of ±0.004 mm with a reading increment of 0.001 mm, making it suitable for demanding measuring tasks where repeatability matters. The analogue construction provides a tactile feedback that many technicians prefer when aligning anvils within a bore; combined with the carbide measuring faces, the instrument resists wear during repeated contact with workpieces. This performance focus reduces rework and speeds up quality decisions on the shop floor without resorting to digital systems for every short-range check.

Robust design and features that reduce measurement uncertainty

A matt‑chrome scale and vernier provide a low‑glare, durable reference that complements the hardened measuring surfaces. The supplied 2.5 mm setting ring enables quick functional checks and helps maintain traceability between measuring runs. Where blind‑hole measurements are required, the geometry of the measuring faces and the micrometer’s compact range ensure secure seating and consistent contact pressure, which together minimise operator‑induced variation and support reliable pass/fail decisions.

Ready for workshop use and straightforward handling

The device is supplied in a protective case for safe transport and storage, reducing the risk of damage between uses. The analogue mechanism is maintenance‑friendly and can be cleaned or adjusted on site without specialised tools, while the solid build supports frequent handling in production environments. For those integrating manual checks into a quality routine, this inside micrometer represents a practical balance of precision and durability that complements existing inspection equipment.

Choose Metav IndustryLine's M312.123 for durable, high‑accuracy bore measurement — contact Metav Werkzeuge in Emmerich for suitability checks and supply.

Technical data

• Article number: M312.123
• GTIN: 4054469119397
• Tariff number: 90173000
• Type: analogue inside micrometer
• Label: Innen‑Mess 2.5–3.0 mm with HM measuring faces

Core specifications

• Measurement range: 2.5–3.0 mm
• Reading increment: 0.001 mm
• Accuracy: ±0.004 mm
• Weight: 1 kg

Special features

• Carbide measuring faces (HM)
• Matt‑chrome scale and vernier
• Setting ring 2.5 mm included
• Suitable for blind holes (sacklochbohrungen)
• Supplied in a protective case

FAQ

What accuracy can be expected from this inside micrometer?
The M312.123 delivers an accuracy of ±0.004 mm with a reading increment of 0.001 mm, making it suitable for fine internal measurements and routine quality checks.

Is a setting or calibration accessory included?
Yes, the instrument is supplied with a 2.5 mm setting ring to verify and adjust the measuring faces before use.

Are the measuring faces resistant to wear with repeated use?
The micrometer is fitted with carbide (HM) measuring faces, which offer significantly improved wear resistance compared with standard steel faces.

Can the instrument measure blind holes?
The geometry and range of the instrument are expressly suited for blind‑hole measurement, and the product specification confirms suitability for such applications.

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