1–15mm Three-Point Outside Micrometer 0.01mm Readout Carbide Faces Ratchet, Supplied in Case - Metav IndustryLine

Take advantage of the stable contact of a three‑point measuring system, the fine 0.01 mm graduation and carbide measuring faces for wear resistance to keep workshop measurements reliable and repeatable; order the instrument directly via Metav Werkzeuge or consult our specialists for application advice.

M309.020 three‑point micrometer — 1–15 mm, 0.01 mm graduation (Metav IndustryLine)

The M309.020 is a three‑point external micrometer designed for precise measurement of triangular and multi‑sided workpieces in fine mechanical and workshop environments.

• 3‑point measuring anvil for stable contact
• Range 1–15 mm with 0.01 mm resolution
• Carbide measuring faces (HM) for wear resistance
• Ratchet stop for consistent measuring force

Precision where geometry matters

The three‑point measuring principle gives a reproducible contact on polygonal cross‑sections, which simplifies fast checks on triangular or multi‑sided components. Combined with the 0.01 mm graduation and an indicated accuracy of 0.005 mm, this mechanical instrument provides measurable confidence for routine quality checks and setup tasks. The analogue display and fine graduation remain intuitive for operators familiar with conventional micrometres, while the reduced contact ambiguity on non‑cylindrical parts speeds inspection cycles and reduces rework.

Built for reproducible measuring routines

A ratchet stop ensures uniform contact pressure on the spindle, eliminating variations from manual over‑tightening and improving repeatability across batches. The spindle and measuring faces are finished with carbide (HM) contact surfaces, delivering long service life and stable results even under frequent use. The robust drum, matt‑chrome plated for anti‑glare reading, supports clear readings on the 0.01 mm scale; this combination of mechanical control and wear‑resistant faces reduces the need for frequent recalibration in standard workshop use.

Durable design and workshop usability

The measuring frame is lacquered to resist everyday knocks, while the matt‑chromed measuring drum supports reliable legibility and protection against corrosion. The device is tailored for quick routine checks on shaped parts where three‑point contact improves centring and reduces measurement scatter. As a mechanically operated micrometer with a compact measuring span of 1–15 mm, it is especially suited to precision tasks in toolrooms and small‑batch production where robust handling and clear results are required.

Contact Metav Werkzeuge for bespoke advice on the M309.020 three‑point micrometer and to arrange reliable supply from our Emmerich facility

Technical Data

• Article number: M309.020
• GTIN: 4054469117553
• Category: Messschrauben (Micrometers)
• Tariff code: 90173000

Numerical Data

• Measuring range: 1–15 mm
• Resolution / graduation: 0.01 mm
• Indicated accuracy: 0.005 mm
• Setting gauge: 1 mm

Design / Special features

• Frame lacquered and measuring drum matt‑chrome plated
• Carbide (HM) measuring faces
• Ratchet stop for consistent measuring force
• Analogue mechanical instrument
• Suitable for triangular and multi‑sided workpieces

FAQ

How does the three‑point measuring principle improve results on polygonal parts? The three‑point arrangement centres on flat or polygonal profiles and reduces contact ambiguity; the M309.020 delivers more reproducible readings on triangular or multi‑sided workpieces compared with single‑point contact.

What reading resolution and accuracy can be expected from this micrometer? The instrument features a 0.01 mm graduation with an indicated accuracy of 0.005 mm, offering fine resolution for workshop inspection tasks and setup measurements.

Are the measuring faces resistant to wear from frequent use? Yes, the measuring faces are made of carbide (HM), which improves wear resistance and maintains contact geometry over extended inspection cycles.

Is the micrometer suitable for routine quality control in a production environment? The analogue design with a ratchet stop and durable contact faces makes the M309.020 appropriate for repeatable checks in small‑batch production, toolrooms and maintenance workshops.

What maintenance is recommended to keep measurement reliability? Regular cleaning of spindle and faces, light lubrication of the spindle threads and periodic verification against a certified gauge are advised to maintain the micrometer’s performance.

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