20-40mm Three-Point Self-Centering Bore Micrometer Set 0.005mm Resolution, Supplied in Case - Metav IndustryLine

Take advantage of self‑centring three‑point measurement, industrially hardened carbide measuring faces and a precise 0.005 mm reading for reliable bore inspection. Order the set directly via Metav Werkzeuge or consult the technical team for application advice.

Three‑point internal micrometer M836.745 — self‑centring, 20–40 mm measuring range

The three‑point internal micrometer is a precision instrument for measuring bores and internal diameters in workshop and inspection environments, designed for repeatable readings where concentricity and contact stability matter.

• Self‑centring three‑point measurement
• Resolution and accuracy 0.005 mm
• Supplied as a set of four gauging heads

Faster, traceable bore measurement through precise contact geometry

The three‑point measuring principle reduces positioning errors by establishing a stable contact plane, which directly improves repeatability and reduces rework. With a reading step and instrument accuracy of 0.005 mm, the tool suits tasks where tight tolerances determine part acceptance. The self‑centring design compensates for minor misalignment during insertion, so measurements become more consistent and less dependent on operator technique. Industrial users benefit from quicker inspection cycles and fewer subjective adjustments when recording internal diameters.

A practical set that covers common workshop ranges with durable faces

Delivered as a set of four gauging heads, the package covers the 20–40 mm interval in short, serviceable increments, enabling efficient inspection of a series of similar bores without swapping measuring systems. The measuring faces are made with carbide, offering wear resistance for high usage rates and preserving the calibrated contact geometry over time. Extensions of 150 mm provide access to deeper bores or recessed features, increasing the instrument’s versatility for assembly and maintenance tasks in production environments.

Built for reproducibility and long-term use in industrial settings

Constructed for stable handling and minimal deformation under normal use, the instrument supports frequent in‑line checks and shop‑floor documentation. The analogue reading and finely machined adjustment ring allow precise tuning and immediate visual confirmation, while the rigid three‑point contact reduces influence from lateral forces. As part of the Metav IndustryLine, this measuring solution aligns with a supplier approach that prioritises accessibility of precision tools for workshops and small production facilities, adding practical value through reliability and straightforward handling.

Contact Metav Werkzeuge for tailored advice on integrating this Metav IndustryLine micrometer set into inspection routines or to confirm suitability for specific bore tolerances

Technical data

• Article number: M836.745
• GTIN: 4061905041228
• ECLASS: 21170335
• ETIM: EC003590

Facts

• Measuring range: 20–40 mm
• Resolution / reading: 0.005 mm
• Accuracy: 0.005 mm
• Set: 4 pieces
• Extension length: 150 mm

Special features

• Self‑centring three‑point design
• Carbide measuring faces
• Analogue graduated adjustment ring
• Designed for bore and internal diameter measurement

FAQ

How accurate is the three‑point internal micrometer in this set? The set achieves an accuracy and reading resolution of 0.005 mm, making the M836.745 suitable for tight bore tolerances and repeatable inspection tasks.

Can the set reach recessed bores or deep features? Yes, the supplied extensions of 150 mm increase reach for deeper or recessed internal measurements when using the gauging heads included in the Metav IndustryLine set.

Are the measuring faces durable for frequent shop‑floor use? The instrument is fitted with carbide measuring faces, which are resistant to wear and preserve contact geometry under intensive use.

Is this product suitable for series inspection in a production environment? The combination of a self‑centring three‑point contact and 0.005 mm resolution makes the set well suited for series inspection where repeatability and speed are required.

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