225-250mm Micrometer With Ratchet Stop, 0.005mm Accuracy, ISO 17025 Calibration Certificate Included - Microtech Metrology

High-precision measurement with ±0.005 mm accuracy, a ratchet stop for consistent measuring force and an accompanying ISO 17025 calibration certificate ensure reliable results in production and quality-control environments. Order the instrument directly via Metav Werkzeuge or consult their specialists for application advice.

Outside Micrometer 225–250 mm — Microtech Metrology large-range outside micrometer with ratchet stop

The Outside Micrometer 225–250 mm is a large-range analogue measuring instrument designed for external dimensions on shafts, housings and large components in workshops and inspection rooms.

• High accuracy ±0.005 mm
• Resolution 0.01 mm dial
• Ratchet stop micrometer head
• Calibration certificate ISO 17025 included

Precision where large parts meet tight tolerances

This measuring instrument delivers high-resolution readings through an analogue scale with a 0.01 mm graduation, while the overall accuracy of ±0.005 mm places it in the high-precision bracket suitable for demanding quality-control tasks. The benefit of this accuracy is straightforward: fewer rejected parts and quicker go/no-go decisions on production lines. The specified 225–250 mm measuring range covers a segment of large-range workpieces such as stepped shafts or bearing housings, where a standard micrometer would be too short and a tape too imprecise. The design balances reach with stiffness, ensuring repeatable measurements across the specified span.

Consistent force and repeatable readings for production use

A ratchet stop on the spindle ensures the same measuring force is applied each time, reducing operator-induced variation and supporting reproducible results in batch inspection. This mechanical feature is particularly useful when the instrument is used repeatedly across multiple operators or shifts, as it removes a common human error source. Combined with the micrometer’s robust analogue drive and a clearly marked scale, the instrument supports efficient throughput in workshop routines without sacrificing measurement integrity.

Traceable calibration for quality assurance

Delivered with a full ISO 17025 (Ilac MRA) calibration certificate, the micrometer arrives ready for integration into documented quality systems and internal audits. The certificate verifies that the instrument has been calibrated in accordance with internationally recognised laboratory standards, giving traceability back to national measurement institutes. For organisations maintaining accredited inspection processes, this eliminates an extra calibration step and demonstrates compliance during supplier assessments or customer audits.

Practical applications and handling advantages

Engineered for external measurement tasks on medium-to-large components, the instrument suits toolrooms, maintenance shops and incoming inspection. Typical applications include verifying stepped diameters, checking shaft shoulders and confirming mounting diameters on housings. The analogue resolution of 0.01 mm provides a clear balance between usability and precision, while the micrometer’s large-range capacity reduces the number of separate instruments required on the bench. As an analogue device, it is straightforward to operate and requires minimal setup, making it a pragmatic choice where ruggedness and continuity of readings are priorities.

Contact Metav Werkzeuge to discuss the Microtech Metrology outside micrometer for specific measuring tasks or to request a calibrated unit; phone +49 2822 7131930 or e‑mail info@metav-werkzeuge.com

Technical data

• Article number: 110112501
• GTIN: 4061905458767
• Manufacturer: Microtech Metrology

Facts

• Measuring range: 225–250 mm
• Resolution: 0.01 mm
• Accuracy: ±0.005 mm
• Display type: Analog
• Anvil diameter: Ø6.5 mm

Special features

• Ratchet stop micrometer head
• Calibration certificate ISO 17025 (Ilac MRA)
• Analogue high-accuracy instrument

FAQ

What accuracy can be expected from this outside micrometer?
The outside micrometer from Microtech Metrology offers an accuracy of ±0.005 mm, a level suited for precise workshop and inspection tasks.

Is the micrometer supplied calibrated and traceable?
Yes — the instrument is supplied with a calibration certificate issued under ISO 17025 (Ilac MRA), confirming traceability and laboratory calibration.

Which measuring range does the micrometer cover and what is it best used for?
The instrument covers the 225–250 mm range and is ideal for external measurements on shafts, bearing housings and similar large components.

How does the ratchet stop help in everyday use?
The ratchet stop on the micrometer spindle ensures a consistent measuring force for repeatable readings, reducing operator influence during repeated checks.

Is the display digital or analogue and what resolution does it provide?
This is an analogue instrument with a 0.01 mm graduation, offering clear, high-resolution readings for workshop inspection.

Manufacturer / Responsible: Microtech, Nizhneyurkovska str., 45a, 04080 Kyiv, Ukraine, tool@microtech.tools