87-100mm Three-Point Internal Micrometer With Carbide Measuring Faces, Setting Ring, DIN 863 - Metav IndustryLine

Take advantage of the combination of high measuring accuracy, carbide measuring faces and robust analogue mechanics for reliable internal diameter checks; order the instrument directly via Metav Werkzeuge or ask our consultants if further application advice is required.

Three-point internal micrometer M312.163 – 87–100 mm, carbide faces (Metav IndustryLine)

The Three-point internal micrometer M312.163 is a compact, analogue measuring instrument for precise determination of internal diameters in blind and through bores in workshop and inspection environments

• Three-point internal measuring 87–100 mm range
• Carbide measuring faces for long tool life
• High accuracy 0.005 mm resolution
• Supplied with setting ring and transport case

Precise internal measurement with repeatable results

The instrument uses a three-point measurement principle that centres automatically within the bore, improving centring accuracy and reducing operator-induced eccentricity. The analogue mechanism provides a direct tactile feel and a consistent resolution of 0.005 mm, which supports fine tolerance checks in production and incoming inspection. Carbide measuring faces ensure wear resistance and stable contact geometry, so measurement uncertainty remains low over extended use.

Robust construction for everyday workshop use

Conforming to DIN 863, the device features a matt chrome-plated scale and vernier that reduces glare and improves legibility under workshop lighting. The compact design and the included setting ring facilitate quick verification against a reference diameter, shortening set-up time and keeping inspection throughput efficient. The analogue nature removes dependency on batteries while the solid build supports frequent handling and transport.

Designed for blind-hole inspection and easy handling

Specifically prepared for blind-hole applications, the gauge’s geometry allows secure engagement inside blind bores, guaranteeing reliable results where single-point probes struggle. The included transport case protects the gauge during storage and shipment and aids organised tool management on the shop floor. At a measuring range of 87–100 mm and a nominal body length of 114 mm, the instrument strikes a balance between reach and manoeuvrability for medium-sized internal features.

Contact Metav Werkzeuge for application advice and to secure the Metav IndustryLine three-point internal micrometer M312.163 for precision internal measurements in your inspection workflow

Technical data

• SKU: M312.163
• GTIN: 4054469119700
• Label: Dreipunkt-Innenmess, 87 - 100 mm mit HM-Messflächen, Einstellring
• Manufacturer: Metav IndustryLine
• ECLASS: 21170335
• ETIM: EC003590
• Norm: DIN 863

Facts

• Measuring range: 87–100 mm
• Resolution / graduation: 0.005 mm
• Stated accuracy: 0.005 mm
• Body length: 114 mm
• Analogue instrument

Special features

• Carbide (HM) measuring faces
• Three-point internal measurement geometry
• Supplied with setting ring (87)
• Suitable for blind-hole measurement
• Matt chrome-plated scale and vernier
• Delivered in transport case
• Analogue, battery-free operation

FAQ

Is this instrument suitable for blind-hole measurements?
Yes. The three-point geometry is specifically designed for reliable engagement and centring in blind bores; the Three-point internal micrometer M312.163 performs repeatable internal diameter checks in such applications.

What accuracy and resolution can be expected?
The device provides a resolution of 0.005 mm and a stated accuracy of 0.005 mm, suitable for fine workshop inspection and quality control tasks within its measuring range.

Does the delivery include a setting ring and protective case?
Yes. The instrument is supplied with a setting ring and a transport case to protect the gauge during storage and transport.

Is the micrometer analogue or electronic?
The gauge is an analogue instrument; no batteries are required and the mechanical drive offers direct tactile feedback for controlled measuring.

To which standard does the instrument conform and is calibration included?
The instrument is manufactured to DIN 863. A setting ring is supplied for reference checks; periodic calibration is recommended in accordance with company quality procedures.

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