4–5mm Inside Micrometer With Carbide Measuring Faces, Setting Ring 5mm, 0.004mm Accuracy - Metav IndustryLine

Take advantage of the compact 4–5 mm measuring range, carbide measuring faces and the included 5 mm setting ring for reliable internal measurements in confined bores; order directly via Metav Werkzeuge or consult our specialists for tailored advice.

M312.128 inside micrometer — analogue internal measurement, carbide faces (Metav IndustryLine)

The M312.128 is an analogue inside micrometer designed for ultra‑compact internal measurement tasks, especially suited to blind‑hole and fine‑mechanical inspection in toolrooms and precision workshops.

• Carbide measuring faces
• Includes 5 mm setting ring
• Analogue reading 0.001 mm
• Accuracy ±0.004 mm

Precision where space is limited

The instrument is built for internal measurement in very small bores (4.0–5.0 mm), a range that places it among ultra‑compact precision tools. The analogue scale with a 0.001 mm graduation gives a finely resolved reading, while the stated accuracy of ±0.004 mm provides a quantifiable basis for quality control decisions. Such measurable performance supports reproducible results when checking mating parts, bores in small housings or finish checks on turned components.

Durable contact geometry for repeatable results

Wearing of contact surfaces is a common cause of drift in repeated checks; the carbide measuring faces on this instrument resist abrasion and retain form under normal workshop use. The hardened contact tips combined with a matt‑chrome scale and vernier ensure legible readings and stable contact behaviour. A supplied 5 mm setting ring allows quick calibration to a known standard, reducing set‑up time and improving day‑to‑day repeatability.

Compact design with practical workshop benefits

The compact construction minimises deflection during insertion into blind holes and simplifies handling in cramped fixtures. As an analogue micrometer it needs no batteries and offers immediate, tactile feedback during measurement—qualities valued in production gates and toolmaking benches where speed and reliability count. Its suitability for blind‑hole measurement is expressly intended for applications such as small‑bore inspection, component verification and fixture checks.

Practical integration and assured supply

Integrating this micrometer into routine inspection workflows yields clear efficiency gains: fewer handling steps, faster set‑ups with the setting ring, and durable contacts that reduce rework from worn tooling. Metav IndustryLine supplies the device with industrial distribution from Emmerich, combining a wide product range with local stock and a technical filter before dispatch—an advantage for shops that require dependable, repeatable metrology solutions.

For ultra‑compact internal measurements, contact Metav Werkzeuge to procure the Metav IndustryLine M312.128 or request advice from our technical team via info@metav-werkzeuge.com or +49 2822 7131930 for application support and delivery options.

Technical data

• SKU: M312.128
• GTIN: 4054469119410
• Category: Micrometer (inside measurement)
• ECLASS: 21170335

Facts

• Measuring range: 4.0–5.0 mm
• Resolution (reading): 0.001 mm
• Stated accuracy: ±0.004 mm
• Setting ring: 5 mm

Special features

• Carbide measuring faces
• Scale and vernier matt chrome‑plated
• Analogue vernier design
• Suitable for blind‑hole measurement
• Includes setting ring

FAQ

Is this instrument suitable for blind‑hole measurements?
Yes. The M312.128 inside micrometer is specifically designed for internal and blind‑hole checks and features carbide measuring faces and a compact profile for secure insertion.

What level of resolution and accuracy does the instrument deliver?
The analogue reading is 0.001 mm with a stated accuracy of ±0.004 mm, allowing routine quality control and fine inspection in small bores.

Does the delivery include calibration or a certificate?
Standard delivery includes the instrument and the 5 mm setting ring for on‑site zeroing; no ISO 17025 certificate is indicated for this item in the supplied data.

What materials are used for the scale and measuring faces?
The scale and vernier are matt‑chrome plated, while the contact faces are carbide, chosen for wear resistance and longevity in workshop use.

Can this instrument be used in production environments?
Yes. The durable contacts, simple analogue operation and included setting ring make it well suited to repeated checks in production and toolroom settings.

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