5–6mm Internal Measuring Micrometer With Carbide Faces, Setting Ring 6mm, Supplied In Case - Metav IndustryLine

Taking advantage of its micro-range design, carbide measuring faces and included 6 mm setting ring ensures repeatable internal measurements in small bores with minimal setup time; order the micrometer directly via Metav Werkzeuge or ask our consultants for application advice.

M312.129 Inside micrometer — 5–6 mm, carbide measuring faces (Metav IndustryLine)

The M312.129 is an analogue inside micrometer designed for ultra‑fine internal measurement tasks, especially blind‑bore and small‑component inspection in precision workshops and toolrooms.

• Micro-range 5–6 mm for ultra-fine work
• Carbide measuring faces for wear resistance
• Includes 6 mm setting ring for fast calibration
• Supplied in protective case for transport

High precision where small tolerances matter

This analogue inside micrometer delivers a specified accuracy of ±0.004 mm, making it suitable for demanding fine‑mechanical checks. The instrument’s reading increment is 0.001 mm, which—together with the finely graduated vernier and matt chrome‑plated scale—permits clear interpretation of results without electronic conversion. The use of carbide (HM) measuring faces reduces wear on the contact surfaces, so measurement reproducibility is preserved over long production runs. For shops replacing routine bench checks with a robust mechanical standard, this tool offers a cost‑effective route to consistent internal measurements.

Built for repeatable measurements and easy setup

Delivered with a matched 6 mm setting ring, the device can be zeroed and verified quickly before batch checks, reducing downtime during shift changes. The matt chrome finish on the scale and vernier improves contrast under workshop lighting and resists glare, which aids rapid, error‑free readings. The construction targets compact inspection tasks: the micro‑range design is optimised for small bores and components typical in watchmaking, small valve seats and precision turned parts. Supplied in a protective case, the instrument is protected during transport and storage, supporting reliable use across multiple jobsites.

Practical applications and user advantages

The instrument is intended for internal diameter inspection and is specifically suitable for blind hole measurements, where access and repeatability are critical. The analogue format requires no batteries and offers tactile control when measuring delicate bores. Because the measuring faces are carbide, the instrument is appropriate for routine use on non‑abrasive and mildly abrasive surfaces without rapid degradation. Metav IndustryLine’s specification balances workshop practicality with traceable performance, making this micrometer a sensible choice where space, repeatability and low maintenance are priorities.

For reliable internal checks in ultra‑small bores choose the Metav IndustryLine M312.129 — contact Metav Werkzeuge in Emmerich for product details or application guidance via info@metav-werkzeuge.com or +49 2822 7131930.

Technical Data

• Article number: M312.129
• GTIN: 4054469119427
• Category: Messschrauben (micrometers)
• Tariff code: 90173000

Facts

• Measuring range: 5.0–6.0 mm
• Reading increment: 0.001 mm
• Specified accuracy: ±0.004 mm
• Setting ring: 6 mm included

Special features

• Carbide measuring faces (HM)
• Scale and vernier matt chrome‑plated
• Analogue (nonius) design
• Supplied with setting ring
• Supplied in protective case
• Suitable for blind‑hole measurements

FAQ

What accuracy can be expected from this inside micrometer?
The specified accuracy for the M312.129 inside micrometer is ±0.004 mm, which supports high‑precision internal checks in micro‑range applications.

Does the instrument include a calibration or setting aid?
Yes, the instrument is supplied with a 6 mm setting ring to allow rapid zeroing and verification before measurement sequences.

Are the measuring faces durable for workshop use?
The measuring faces are made of carbide (HM), which provides strong wear resistance and sustained repeatability in routine shop use.

Is this micrometer suitable for blind hole measurements?
The design is expressly suitable for blind‑hole measurements, where accessing and reliably reproducing internal dimensions is required.

Does the micrometer require batteries or electronic components?
No, the M312.129 is an analogue instrument with a vernier scale and does not require batteries, simplifying maintenance and long‑term use.

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