10-12mm Three-Point Inside Micrometer Self-Centring, Calibrated in Wooden Case - Metav IndustryLine

Take advantage of the combination of self‑centring three‑point contact, 5 µm accuracy and robust carbide measuring faces for consistent bore measurement in precision workshops. Order the instrument directly via Metav Werkzeuge or consult the specialists for application support and delivery from Emmerich.

Three‑point internal micrometer M836.706 — self‑centring, 10–12 mm range

A Three‑point internal micrometer engineered for repeatable small‑bore measurement in precision engineering and toolmaking applications.

• Self‑centring three‑point contact
• Measuring range 10–12 mm
• 0.005 mm accuracy
• Carbide measuring faces

Precise small‑bore measurement where repeatability matters

The instrument is built around a three‑point contact head that automatically aligns with the bore axis, reducing centring errors and shortening setup time. With a measuring range of 10–12 mm and an indicated accuracy of 0.005 mm (5 µm), the tool closes the gap between standard gauges and specialised micro‑measurement equipment. The analogue spindle gives tactile control for delicate adjustments while the fine graduation supports controlled readings, making this an efficient choice for repeat inspections and small‑batch quality checks.

How the self‑centring design reduces operator influence

The self‑centring mechanism distributes contact forces across three equally spaced anvils, so the measured diameter is less sensitive to off‑axis pressure or misalignment. This mechanical advantage translates into greater repeatability during serial checks and reduces rework caused by inconsistent measurements. For production environments where cycle time and conformity are measured in minutes, the reduced need for re‑positioning and re‑measuring saves technician time and improves throughput.

Hardened measuring faces for durability and consistent results

Measuring faces are finished in carbide, providing wear resistance and stable contact geometry over long service intervals. Carbide faces preserve accuracy in workshop conditions where handling and ambient contaminants can accelerate wear on softer surfaces. The combination of hardened contacts and a precise spindle contributes to a long service life while keeping calibration needs predictable, which supports reliable inspection routines in busy maintenance or manufacturing departments.

Practical integration into inspection and assembly workflows

Compact dimensions and clear analogue feedback make the gauge simple to use at the bench, on assembly lines or in toolrooms. The device is especially suited to fine mechanical work, gauge verification and small‑bore checks in toolmaking, hydraulic components and precision housings. Where instrument interchangeability is required, the three‑point principle ensures consistent centring across different bore geometries, simplifying process documentation and reducing operator training overheads.

Care, handling and calibration considerations

Routine care is limited to keeping the measuring faces clean and protecting the spindle from shock and contamination. The mechanical nature of the instrument makes field checks straightforward and allows rapid verification against dated master rings or reference gauges. For traceable workflows, the gauge can be incorporated into regular calibration cycles to maintain documented measurement certainty and ensure continued compliance with internal quality plans.

Discuss the Metav IndustryLine self‑centring three‑point internal micrometer with Metav Werkzeuge in Emmerich for specification advice and reliable supply — contact info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: M836.706
• GTIN: 4061905041402
• Brand: Metav IndustryLine
• ECLASS: 21170335
• ETIM: EC003590

Facts

• Measuring range: 10 mm – 12 mm
• Indicated accuracy: 0.005 mm
• Graduation: 0.001 mm
• Analogue instrument

Special features

• Self‑centring three‑point contact
• Carbide measuring faces
• Category: Messschrauben
• Analog display

FAQ

What is the measuring range of this gauge and for which applications is it suited?
The measuring range is 10–12 mm; the gauge is intended for small‑bore precision work in toolmaking, hydraulic components and fine mechanical assemblies where repeatable centring is required.

How accurate is the instrument in practical use?
The instrument indicates an accuracy of 0.005 mm (5 µm); the three‑point contact and hardened faces help to maintain that performance in routine inspection tasks.

Are the measuring faces durable enough for workshop use?
Yes, the measuring faces are carbide‑finished, which provides wear resistance and stable contact geometry for prolonged service in workshop conditions.

Is this an electronic device and does it need batteries?
No, this is an analogue internal micrometer; it operates mechanically and does not require batteries or electronic components.

How does the self‑centring mechanism improve measurement speed?
The self‑centring head aligns automatically with the bore axis, reducing repositioning and re‑measuring, which speeds up serial inspections and lowers operator variance.

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