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| Country of Origin | Japan |
|---|---|
| Resolution | 0.01 mm |
| Accuracy | ±0.002 mm |
| Brand | Mitutoyo |
| Standards/Approvals | protection levelIP54 water resistance protectionConforming to IP65IP65 water/dust protection level (331 series) |
| Minimum Measurement | 50 mm |
| Maximum Measurement | 75 mm |
| Imperial/Metric | Metric |
| Micrometre Type | External |
Mitutoyo 103-139-10 external micrometre is a high-precision measuring instrument designed for dimensional measurement in industrial, laboratory, and manufacturing environments. It measures external dimensions ranging from 50 mm to 75 mm with an accuracy of ±0.002 mm and a resolution of 0.01 mm, making it suitable for precise engineering tasks.
The micrometre features a robust cast iron frame and steel spindle with ground threads. Measuring faces are tipped with hard micro-lapped tungsten carbide to ensure long-lasting accuracy and wear resistance. It includes a positive spindle lock and a ratchet stop thimble to maintain a consistent measuring force, thereby delivering reliable and repeatable results.
This model supports metric measurements with the ability to convert to imperial units, enhancing versatility. It is protected with IP54 water resistance and conforms to IP65 water/dust protection levels, ensuring durability in challenging environments. The micrometre is supplied with an adjustment spanner and an instruction leaflet, all housed in a protective storage box for safe handling and storage.
Typical applications include engineering measurement, quality control in manufacturing, laboratory testing, and other precision measurement tasks. Its durable construction and fine measurement capabilities make it an essential tool in workshops and industrial settings.
Accuracy of ±0.002 mm ensures precise readings. Resolution of 0.01 mm supports fine measurement. IP54 water resistance and IP65 dust protection enhance durability. Includes an adjustment spanner and protective storage box.
Positive spindle lock and ratchet stop enable consistent measurements. Cast iron frame with tungsten carbide tipped spindle for longevity. Metric system with imperial conversion functionality. Ideal for industrial, laboratory, and manufacturing use cases.
Explore more precision measuring instruments in our Test & Measurement category to find complementary tools and accessories.
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