16–20mm Three-Point Internal Micrometer 0.001mm Resolution With Setting Ring And Extension, In Case - Metav IndustryLine

Take advantage of the combination of precise three‑point measurement, ultra‑fine 0.001 mm resolution and hardened measuring faces for reproducible bore inspection; order the instrument directly via Metav Werkzeuge or consult our technical team for application advice.

Three‑point internal micrometer M312.434 — 16–20 mm, 0.001 mm resolution (Metav IndustryLine)

A three‑point internal micrometer M312.434 designed for high‑precision measurement of small bores, supplied with a setting ring and extension for adaptable, repeatable inspection.

• Three‑point internal measurement for bore accuracy
• 0.001 mm resolution for sub‑micron control
• Includes setting ring and extension
• Supplied in protective case with hardened anvils

Precision where bore geometry counts

The three‑point measuring principle ensures rapid centring in cylindrical bores and reduces measurement deviation caused by off‑axis contact. Using three contact points produces a stable datum that is particularly effective for blind bores and short‑run features; the result is repeatable diameter readings and fewer rechecks during quality control. This compact instrument is purpose‑built for fine mechanical tasks where consistent internal measurement is essential.

Measurable benefits from fine resolution

With a 0.001 mm resolution and a stated accuracy of ±0.005 mm, the micrometer bridges the gap between routine workshop gauges and specialist metrology equipment. These figures permit confident inspection of tight tolerances in small components and reduce the need for conservative tolerances that can inflate manufacturing costs. The micro‑range of 16–20 mm makes the tool ideal for precision components in watchmaking, medical devices and small assemblies where small geometry changes matter.

Accessories that increase throughput and reliability

Supplied with a setting ring and a calibrated extension (152.4 × Ø11.8 mm), the instrument adapts to stepped bores and deeper features without compromising stability. The measuring faces are hardened, improving wear resistance and long‑term stability; a protective case keeps the set organised and safe in workshop environments. Together, these accessories shorten setup time and support a consistent measuring routine that saves labour and reduces scrap.

Practical fit for workshop workflows

Compact and ergonomically balanced, this internal micrometer is suitable for bench inspection or integration into routine incoming‑goods checks. The solid construction and matt‑chrome scale provide clear readings while resisting workshop contamination. For operations seeking dependable repeatability and a small footprint instrument, the M312.434 offers a robust solution that complements existing precision toolsets without extensive retraining.

Contact Metav Werkzeuge for detailed application advice and secure the Metav IndustryLine M312.434 three‑point internal micrometer with 0.001 mm resolution for precise bore inspection at your facility.

Technical data

• Article number: M312.434
• GTIN: 4054469182162
• Manufacturer: Metav IndustryLine

Facts

• Measuring range: 16–20 mm
• Resolution: 0.001 mm
• Accuracy: ±0.005 mm
• Weight: 0.9 kg

Special features

• Three‑point internal measurement
• Setting ring: 16 mm
• Extension: 152.4 x Ø11.8 mm
• Measuring faces: hardened
• Scale and vernier: matt chrome‑plated
• Delivered in protective case
• Suitable for blind bores

FAQ

What is the measuring range of this micrometer?
The three‑point internal micrometer M312.434 measures internal diameters from 16 to 20 mm.

What resolution and accuracy can be expected?
The instrument offers a resolution of 0.001 mm and an accuracy of ±0.005 mm, suitable for fine‑tolerance inspection.

Can the micrometer measure blind bores reliably?
Yes, the three‑point geometry and included extension make the M312.434 well suited to blind bore measurement.

What accessories are included with the tool?
The delivery contains a setting ring and an extension (152.4 × Ø11.8 mm) plus a protective case for safe storage.

Are the measuring faces durable for daily use?
The measuring faces are hardened to resist wear, supporting stable readings over extended workshop use.

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