50-63mm Three-Point Bore Depth Micrometer With Extension And Setting Ring, Case - Metav IndustryLine

Take advantage of 5 µm repeatability, a 50–63 mm measuring range and the included setting ring with extension for dependable blind-hole inspection; order directly via Metav Werkzeuge or consult our specialists for application support.

Three-point internal micrometer M312.160.P — Analogue three-point gauge, 50–63 mm range, 0.005 mm accuracy (Metav IndustryLine)

A three-point internal micrometer M312.160.P designed for precise measurement of blind bores and internal diameters in demanding workshop and inspection environments.

• Three-point contact for stable centring
• Measurement range 50–63 mm
• High mechanical accuracy 0.005 mm
• Carbide measuring faces for wear resistance
• Includes setting ring and extension Ø21.8 mm

Stable centring and repeatable blind-hole measurement

The three-point contact system gives a concentric, self-centring contact that minimises eccentricity in blind-hole measurements. With a 50–63 mm range and 0.005 mm resolution the instrument provides consistent, repeatable results across serial inspections, reducing the need for corrective rework. This stability is particularly valuable where run-out and alignment errors would otherwise undermine quality-control routines.

Robust construction for workshop longevity

Designed for frequent shop-floor use, the gauge combines carbide measuring faces with a matt chrome scale and vernier to resist wear and maintain legibility under industrial lighting. The analogue vernier provides tactile feedback and reliable readings without electronics, making the tool suited to environments where battery-free operation and simple maintenance are advantages. The mechanical build supports regular handling without compromising measurement integrity.

Ready-to-use setup with extended reach

The instrument is supplied complete with a setting ring and an extension—listed as 150 × Ø21.8 mm—so deeper blind bores can be reached without improvised workarounds. The inclusion of these accessories ensures immediate usability for many common internal-measurement tasks, and helps integrate the gauge into existing inspection fixtures and jigs with minimal adjustment. The accessory package supports productive metrology workflows from first use.

Precise readings tailored to quality control demands

An analogue design with a fine 0.005 mm step equates to a practical tolerance of 5 µm, suitable for demanding dimensional checks in component manufacture and assembly. The instrument provides clear, interpretable scales for operators with varying levels of metrology experience, while the mechanical configuration reduces operator-induced variation during measurement. For production lines and manual inspection benches alike, the result is a robust, low-complexity solution that supports reliable decision-making.

Contact Metav Werkzeuge today to discuss how the M312.160.P three-point internal micrometer can be integrated into current inspection routines; call +49 2822 7131930 or e‑mail info@metav-werkzeuge.com for tailored advice from our Emmerich team

Technical Data

• Article number: M312.160.P
• GTIN: 4054469158785
• ECLASS: 21170335
• ETIM: EC003590
• Tariff number: 90173000

Facts

• Measurement range: 50–63 mm
• Readability / step: 0.005 mm
• Accuracy: 0.005 mm
• Weight: 3.4 kg
• Length: 90 mm

Special features

• Analogue vernier operation
• Carbide measuring faces
• Scale and vernier matt chrome-plated
• Suitable for blind-hole measurements
• Includes setting ring and extension (150 × Ø21.8 mm)
• Category: internal micrometers / three-point gauge

FAQ

What measurement tasks is this micrometer best suited for?
The M312.160.P three-point internal micrometer is intended for precise inspection of internal diameters, particularly blind holes, across a 50–63 mm range.

What precision can be expected from this instrument?
The M312.160.P achieves a mechanical step of 0.005 mm, corresponding to a practical tolerance of 5 µm, which supports demanding workshop and inspection requirements.

Are the measuring faces wear-resistant?
Yes, the M312.160.P is equipped with carbide measuring faces, chosen to maintain dimensional integrity and resist abrasion during repeated use.

Does the micrometer include accessories for deeper bores?
The M312.160.P is supplied with a setting ring and an extension (150 × Ø21.8 mm) to extend reach for deeper blind-hole measurements.

Is the M312.160.P suitable for production environments without electronic aids?
Yes, the analogue vernier design of the M312.160.P provides battery-free operation and clear tactile feedback, making it well suited to production and shop-floor use.

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