| Specification | Details |
|---|---|
| Brand | INSIZE |
| Model | 3290-803A |
| Product Type | V-Anvil Micrometer |
| Measuring Range | 65–80 mm |
| Graduation | 0.01 mm |
| Accuracy | 6 µm |
| Flutes | 3 |
| V-Angle (α) | 60° |
| Measuring Faces | Carbide |
| Thimble Type | Ratchet Stop |
The INSIZE 3290-803A V-Anvil Micrometer is a precision mechanical measuring instrument designed for measuring the outside diameter of odd-fluted cutting tools and components, such as taps, reamers, and end mills. It provides a 65–80 mm measuring range, 0.01 mm graduation, and 6 µm accuracy. The model features a 3-flute V-anvil configuration, a 60° V angle, carbide measuring faces, and a ratchet stop for controlled measuring force. It is suitable for precision inspection in CNC machining, tool rooms, manufacturing, and engineering workshops.
Key Features
1. 65–80mm Measuring Range
The 3290-803A provides a 65–80 mm measuring range for checking suitable cutting tools and components within this outside-diameter range.
2. 3-Flute V-Anvil Design
The micrometer features a 3-flute V-anvil configuration, designed for measuring the outside diameter of suitable odd-fluted cutting tools. The V-anvil arrangement helps locate the tool correctly during measurement.
3. 60° V-Angle
The 3290-803A has a 60° V-angle, matching its 3-flute configuration and supporting suitable cutting-tool measurement applications.
4. 6µm Accuracy & 0.01mm Graduation
INSIZE specifies 6 µm accuracy and 0.01 mm graduation for this model, providing detailed measurement for tool inspection and quality control.
5. Carbide Faces & Ratchet Stop
The V-anvil micrometer features carbide measuring faces and a ratchet stop, providing durable contact surfaces and controlled measuring force for repeatable inspection. It is supplied with a setting standard.
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