20–35mm Three-Point External Micrometer 0.01mm Reading Carbide Faces Ratchet, Supplied in Case - Metav IndustryLine

Combine carbide measuring faces, a fine 0.01 mm reading and a ratchet stop to secure reproducible results on non‑round profiles; ideal where repeatable, high‑accuracy external measurements are required. Order the Metav IndustryLine M309.022 directly via Metav Werkzeuge or consult our specialists for application advice.

Metav IndustryLine M309.022 — 3‑Point External Micrometer (20–35 mm, 0.01 mm)

The Metav IndustryLine M309.022 is a three‑point external micrometer designed for precise measurement of triangular and five‑sided components in fine mechanical and workshop environments.

*Carbide measuring faces for long service life
*0.01 mm reading with 0.006 mm accuracy
*Ratchet stop ensures consistent measuring force
*Designed for triangular and five‑sided profiles

Exact measurement for non‑round profiles

Three‑point measurement geometry converts irregular edges into a single, reproducible diameter value, making this instrument especially suited for triangular or pentagonal workpieces. The device offers a measuring range of 20–35 mm, placing it in the Mikro category (micro range for up to 100 mm) where stiffness and short anvils are advantages. The analogue scale provides a 0.01 mm reading while the verified measuring performance lists an accuracy of 0.006 mm, so inspection routines benefit from both clear readability and fine resolution. The integrated ratchet stop helps to apply a uniform measuring force, reducing operator‑related scatter.

Built for workshop durability and repeatability

The micrometer combines a lacquered frame with a matt‑chromed measuring drum, balancing corrosion resistance and low glare for consistent reading under workshop lighting. Carbide measuring faces resist wear from repeated contact with hard materials, extending service life and maintaining measurement integrity over time. The ergonomic frame and tactile ratchet give repeatable handling for series checks, supporting efficient quality control in small‑batch production or repair work without complex setup.

Straightforward integration into inspection processes

As a mechanical, analogue instrument, this micrometer is quick to deploy for routine checks and on‑the‑bench inspections. A 20 mm setting datum is available for reference during zeroing or comparative checks, which simplifies daily calibration routines. Its function is complementary to digital micrometres where traceable electronic output is required; here the emphasis is on robust, low‑maintenance performance and reproducible readings of non‑cylindrical profiles. The construction and materials suit use across general metalworking and fine mechanics where three‑point external measurement is the preferred method.

Choose the Metav IndustryLine M309.022 for reliable three‑point external measurements and contact Metav Werkzeuge in Emmerich for tailored application advice via info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: M309.022
• GTIN: 4054469117577
• eClass: 21170328
• ETIM: EC003590

Core specifications

• Measuring range: 20–35 mm
• Resolution / reading: 0.01 mm
• Stated accuracy: 0.006 mm
• Setting datum: 20 mm
• Instrument type: analogue / mechanical

Materials & features

• Frame: lacquered
• Measuring drum: matt‑chrome plated
• Measuring faces: carbide (hardmetal)
• Ratchet stop for constant measuring force
• Suitable for triangular and five‑sided profiles
• Tariff code: 90173000

FAQ

What kinds of components is this micrometer intended for?
The Metav IndustryLine M309.022 three‑point external micrometer is intended for triangular and five‑sided workpieces where a single reproducible external dimension is required.

What is the measuring range and reading capability?
The instrument covers 20–35 mm with an analogue reading of 0.01 mm and a stated accuracy of 0.006 mm.

Does the micrometer use wear‑resistant contacts?
Yes, the measuring faces are made of carbide to ensure long service life and stable measurements under frequent use.

How does the ratchet stop improve measurement consistency?
The ratchet stop limits the applied torque so that each measurement is made with a consistent contact force, reducing variability between operators.

Can this micrometer be used in standard workshop inspection routines?
Its robust construction, simple analogue operation and three‑point geometry make it suitable for routine workshop checks and small‑batch quality control.

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