12–20mm Three-Point Internal Micrometer Set 0.001mm Resolution With Setting Ring And 150×Ø11.8 Extension In Case - Metav IndustryLine

Take advantage of the combination of sub-micron resolution (0.001 mm), hardened measuring faces and a compact micro measuring range for consistently reliable bore inspection; order the set directly via Metav Werkzeuge or ask our consultants for application advice.

Three-point internal measuring set M312.485 – 12–20 mm, 0.001 mm resolution (Metav IndustryLine)

The Three‑point internal measuring set M312.485 is a precision instrument designed for accurate measurement of blind bores and small internal diameters in workshop and inspection environments.

• High resolution 0.001 mm reading
• Measuring range 12–20 mm for blind bores
• Includes setting ring and 150×Ø11.8 mm extension
• Hardened measuring faces; supplied in case

Precision where tiny differences matter

This three‑point internal measuring set delivers 0.001 mm resolution with an accuracy of ±0.005 mm, enabling repeatable discrimination of extremely small dimensional deviations. Classified in the micro range (max. measuring range up to 100 mm), the instrument is tailored to tasks where tight tolerances and compact geometry converge, for example in watchmaking components, small housings and blind bore inspections. The three‑point contact principle stabilises the measurement axis, reducing eccentricity and producing a reliable representative diameter for quality control.

Durable design for workshop routines

Built for regular use, the measuring surfaces are hardened, which reduces wear and preserves measurement fidelity over time. The scale and vernier are matt chrome‑plated, improving legibility while resisting glare and surface damage during handling. The set comprises two measuring members and is supplied with a setting ring and an extension (150×Ø11.8 mm) to reach deeper bores without changing technique. Supplied in a protective case, the instruments remain organised and protected during storage and transport, supporting straightforward shop‑floor workflows.

Faster inspections and fewer reworks

By combining high resolution with a compact measuring span, the set shortens inspection cycles for small‑diameter features while maintaining traceable outcomes. The setting ring allows quick verification of the instrument’s reference diameter before batch checks, which reduces setup time and lowers the risk of systematic measurement error. For production and maintenance teams this means clearer go/no‑go decisions, reduced rework and a measurable improvement in process stability when integrating the tool into routine quality assurance.

For exact application advice or to secure the Metav IndustryLine three‑point internal measuring set M312.485 with 0.001 mm reading for precision bore inspection, contact Metav Werkzeuge in Emmerich for tailored support and procurement.

Technical data

• SKU: M312.485
• GTIN: 4054469182261
• Set type: Three‑point internal measuring set

Facts

• Measuring range: 12–20 mm
• Resolution: 0.001 mm
• Accuracy: 0.005 mm
• Pieces per set: 2
• Weight: 1.3 kg
• Extension: 150×Ø11.8 mm

Special features

• Three‑point internal measuring principle
• Suitable for blind bores
• Scale and vernier matt chrome‑plated
• Hardened measuring faces
• Includes setting ring
• Supplied in protective case

FAQ

What measuring range and resolution does the set provide?
The set measures from 12 to 20 mm with a resolution of 0.001 mm, giving fine control for small‑diameter inspections.

Is this measuring set suitable for blind bores?
Yes, the three‑point geometry and included extension make the Three‑point internal measuring set M312.485 particularly suitable for measuring blind bores.

What components are included in the set?
The set includes two measuring members, a setting ring and an extension (150×Ø11.8 mm), all supplied in a protective case.

How does the three‑point principle improve measurement?
Three contact points centre the tool within the bore and reduce eccentricity, producing a representative diameter with improved repeatability compared with single‑point probes.

Are the measuring faces protected against wear?
The measuring faces are hardened to increase wear resistance and maintain long‑term measurement stability in routine use.

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