200mm Three-Point Internal Micrometer With Carbide Measuring Faces, Ratchet Stop, 175–200mm Range, In Case - Metav IndustryLine

Take advantage of three-point internal measurement, robust carbide measuring faces and a ratchet stop for reproducible contact force; this combination delivers reliable bore control across the 175–200 mm span and supports consistent production processes. Order the micrometer directly via Metav Werkzeuge or ask the consultants for tailored advice.

Three-point internal micrometer M312.149 — 175–200 mm, carbide measuring faces (Metav IndustryLine)

The three-point internal micrometer M312.149 is a precision instrument for reproducible bore measurement in machine construction and toolrooms, designed for medium-range internal diameters and repeatable workshop use

• Three-point internal measurement
• Carbide measuring faces (HM)
• Range 175–200 mm
• Ratchet stop for reproducible force

Consistent bore accuracy for workshop production

The three-point measuring principle ensures that the measuring contact points centre automatically in cylindrical bores, reducing eccentricity and improving repeatability. With an indicated accuracy of 0.007 mm and a vernier reading of 0.005 mm, the instrument provides the level of precision expected in standard machine‑shop quality control. The combination of precise centring and fine reading capability supports shorter inspection cycles and fewer reworks, which contributes directly to production efficiency.

Built for reproducible handling and longevity

A built-in ratchet stop guarantees consistent measuring force across repeated measurements, which cuts operator-induced variation and makes the process predictable. The measuring faces are made of carbide (HM) for wear resistance in everyday workshop use, while the matt chrome‑plated scale and vernier improve contrast and legibility under workshop lighting. Despite its solid construction, the tool remains manageable at a nominal weight of 3.7 kg, and it is supplied in a hardened transport box for safe handling and storage during transfer.

Ideal for standard-range internal measurements

Classified in the Standard range (up to 300 mm), the instrument covers the common span used in mechanical engineering, jigs and fixtures, and component inspection. The measuring range of 175–200 mm with a measuring depth of 140 mm makes it suitable for medium‑sized bores, housings and assembly parts where both reach and stiffness are required. Delivery is made without an adjustment ring; calibration or adjustment procedures should be planned accordingly when integrating the micrometer into an inspection procedure.

Practical advantages that support daily workflows

The micrometer’s three-point geometry reduces the need for repositioning during interior measurements, saving time when multiple bores must be checked. The analogue vernier is straightforward to use for operators accustomed to mechanical instruments, and the ratchet stop simplifies training by ensuring uniform contact force. For teams seeking reliable, low‑maintenance gauges for workshop inspection, this instrument offers a pragmatic blend of durability and measurement quality that sustains throughput and reduces measurement uncertainty.

For product enquiries or assistance choosing the correct internal measuring instrument, contact Metav Werkzeuge for personalised support and procurement from their Emmerich stock

Technical data

• Article number: M312.149
• GTIN: 4054469119557
• Label: Dreipunkt-Innenmess, 175 - 200 mm with HM measuring faces; without setting ring, 2.3 kg
• Manufacturer: Metav IndustryLine

Facts

• Measuring range: 175–200 mm
• Measuring depth: 140 mm
• Accuracy: 0.007 mm
• Reading: 0.005 mm
• Weight: 3.7 kg

Special features

• Three-point internal measurement
• Carbide measuring faces (HM)
• Matt chrome-plated scale and vernier
• Ratchet stop for reproducible force
• Supplied in a transport box
• Delivery without setting ring
• Analogue vernier instrument
• Category: Measuring micrometres / internal micrometres

FAQ

What measurement range does the micrometer cover?
The three-point internal micrometer M312.149 covers 175–200 mm and is intended for medium‑sized internal diameters in workshop inspection.

Are the measuring faces wear resistant?
Yes, the M312.149 is fitted with carbide (HM) measuring faces, which provide high wear resistance for routine workshop use.

Is a calibration certificate supplied with the instrument?
The product is supplied as described; no ISO 17025 certificate is indicated in the data. Calibration status should be confirmed with Metav Werkzeuge if a traceable certificate is required.

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