
| Specification | Details |
|---|---|
| Brand | INSIZE |
| Model | 3290-657A |
| Product Type | V-Anvil Micrometer |
| Measuring Range | 45–65 mm |
| Graduation | 0.01 mm |
| Accuracy | 6 µm |
| Flutes | 7 |
| Anvil Type | V-Anvil |
| Type | B |
| Anvil Angle (α) | 128°34'17" |
| Measuring Faces | Carbide |
The INSIZE 3290-657A V-Anvil Micrometer is a precision mechanical measuring instrument designed for accurate measurement of the outside diameter of cutting tools and components with odd numbers of grooves or flutes. It provides a 45–65 mm measuring range, 0.01 mm graduation, and 6 µm accuracy, making it suitable for precision inspection of multi-fluted cutting tools. The 7-flute V-anvil configuration is particularly suited for measuring tools such as taps, reamers, and end mills. It features carbide measuring faces, a ratchet stop, and is supplied with a suitable setting standard.
Key Features
1. 45–65mm Measuring Range
The 3290-657A provides a 45–65 mm measuring range, making it suitable for measuring compatible cutting tools and cylindrical components within this dimensional range.
2. 7-Flute V-Anvil Configuration
The micrometer features a 7-flute V-anvil configuration designed for measuring the outside diameter of parts or cutting tools with odd numbers of grooves, including suitable taps, reamers, and end mills.
3. 0.01mm Graduation & 6µm Accuracy
With 0.01 mm graduation and 6 µm accuracy, the 3290-657A provides detailed mechanical measurement for machining inspection, tool-room applications, and dimensional quality control.
4. Carbide Measuring Faces
The micrometer uses carbide measuring faces, providing durable contact surfaces designed for repeated measurement in machine-shop and inspection environments.
5. Ratchet Stop & Setting Standard
The ratchet stop helps provide consistent measuring force during operation, supporting repeatable readings. The micrometer is supplied with a setting standard for the applicable measuring range.
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