62-75mm Three-Point Internal Measuring Micrometer 0.001mm Resolution With Setting Ring And Extension, In Case - Metav IndustryLine

Take advantage of the combination of sub‑micrometre resolution, robust three‑point measuring geometry and practical accessories for consistent internal measurements of blind‑hole bores. Order the instrument directly via Metav Werkzeuge or consult the specialists for configuration and delivery details.

Three‑point internal micrometer M312.461 — 62–75 mm, 0.001 mm resolution (Metav IndustryLine)

The three‑point internal micrometer M312.461 is a specialist gauge for precision internal measurements, engineered for reliable assessment of blind‑hole bores and cylindrical bores in the 62–75 mm range.

• Three‑point internal measurement precision 0.001 mm
• Range 62–75 mm for blind‑hole bores
• Supplied with adjustment ring and extension
• Scale and vernier matt‑chromed for wear resistance

Precision where access is limited

The instrument uses a three‑point measurement principle to stabilise contact inside confined bores, delivering a resolution of 0.001 mm and a reproducible accuracy of ±0.005 mm. This geometry ensures the contact points centre automatically, reducing eccentricity and providing reliable diameter readings even when only a short insertion depth is available. The result is faster inspection cycles and fewer reworks in production runs that demand repeatable internal tolerances.

Practical setup and stable handling

A dedicated adjustment ring (62 mm) and a threaded extension (152.4 mm × Ø23.5 mm) are included to adapt the instrument to varying insertion depths and blind‑hole geometries. The sliding elements and matt‑chromed scale with vernier are finished to resist wear and minimise glare during reading, while the instrument’s mass (approx. 3.5 kg) contributes to handling stability during measurement. These features combine to shorten setup time and keep measurement uncertainty low in everyday shop‑floor use.

Built for workshop quality control

This three‑point gauge is particularly suited to workshop quality control and fixture inspections where internal diameters must be checked quickly and reliably. The construction and accessory package support consistent procedures for blind‑hole bores, helping to integrate the gauge into routine inspection plans. Backed by Metav’s distribution and product range, the micrometer offers a pragmatic balance between specialist capability and straightforward workshop integration.

For precise internal measurements and tailored accessory advice, contact Metav Werkzeuge in Emmerich — Metav can advise on compatibility, delivery and stock status via info@metav-werkzeuge.com or by phone at +49 2822 7131930.

Technical data

• Article number: M312.461
• GTIN: 4054469182223
• Category: Micrometers / Internal micrometer
• Weight: 3.5 kg

Specifications

• Measuring range: 62–75 mm
• Resolution: 0.001 mm
• Accuracy: ±0.005 mm
• Adjustment ring: 62 mm
• Extension rod: 152.4 mm × Ø23.5 mm
• Measuring faces: yes

Special features

• Three‑point internal measurement
• Suitable for blind‑hole bores
• Scale and vernier matt‑chromed
• Supplied in transport case
• Supplied with adjustment ring and extension

FAQ

What measuring range does the instrument cover?
The micrometer covers an internal measuring range of 62–75 mm and is intended for bore diameters within that window.

What resolution and accuracy can be expected?
Resolution is 0.001 mm with a stated accuracy of ±0.005 mm for routine internal measurements using the three‑point geometry.

Is the tool suitable for blind‑hole bores?
Yes, the design specifically supports measurement of blind‑hole bores using the three‑point contact and included extension.

Which accessories are included?
An adjustment ring (62 mm) and an extension rod (152.4 mm × Ø23.5 mm) are included to adapt the gauge to varying bore depths.

What materials form the measuring faces and scale?
The scale and vernier are matt‑chromed to improve durability and reading contrast during repeated use.

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