The MITUTOYO Outside Micrometer 25–50mm (White Frame) is a precision measuring tool designed for accurate external dimension measurement of medium-sized components such as shafts, rods, and machined parts.
With a measurement range of 25–50mm, this micrometer is typically used as the second essential size after the 0–25mm model in any workshop measurement set. It features a 0.01mm graduation (or finer depending on model), ensuring reliable and repeatable results for industrial and engineering applications.
The micrometer is equipped with a ratchet stop mechanism, which applies constant measuring force and improves accuracy by reducing user variation. High-quality models include carbide-tipped measuring faces, ensuring long-term wear resistance and maintaining precision over time.
Its heat-insulated, enamel-coated (white) frame minimizes the effect of temperature changes from hand contact, helping maintain measurement accuracy in real working conditions.
⚙️ Key Features
- Range: 25–50mm
- Resolution: 0.01mm (or 0.001mm in higher precision models)
- Accuracy: ±2µm (high precision)
- Ratchet Stop: Ensures constant measuring force
- Measuring Faces: Carbide tipped for durability
- Frame: Heat-insulated white enamel coated for stability
- Finish: Satin chrome for clear reading
- Supplied With: Standard setting bar & protective case (model dependent)
🛠️ Applications
- Measuring external diameters (25–50mm range parts)
- Precision machining & fabrication
- Automotive and mechanical inspection
- Quality control & industrial measurement
- Engineering workshops and tool rooms
















