| Specification | Details |
|---|---|
| Brand | INSIZE |
| Model | 3220-300 |
| Product Type | Inside Micrometer |
| Type | C |
| Measuring Range | 275–300 mm |
| Graduation | 0.01 mm |
| Accuracy | 12 µm |
| Measuring Faces | Carbide |
| Thimble Type | Ratchet Stop |
| Display | Mechanical / Analogue |
The INSIZE 3220-300 Inside Micrometer is a precision mechanical measuring instrument designed for accurate measurement of internal dimensions in the 275–300 mm range. It is suitable for measuring large internal diameters, bores, and other internal features in machining and manufacturing applications. The micrometer provides a 0.01 mm graduation, 12 µm accuracy, carbide measuring faces, and a ratchet stop for controlled measuring force. The 3220-300 belongs to the INSIZE 3220 Inside Micrometer series and uses a Type C configuration for larger measuring ranges.
Key Features
1. 275–300mm Measuring Range
The 3220-300 provides a 275–300 mm internal measuring range, making it suitable for large bores, internal diameters, housings, sleeves, and other compatible internal features.
2. 0.01mm Graduation
The micrometer provides a 0.01 mm graduation, allowing detailed mechanical measurement of suitable internal dimensions.
3. 12µm Accuracy
INSIZE catalogue information specifies 12 µm accuracy for the 3220-300. This makes it suitable for general precision inspection of large internal dimensions.
4. Carbide Measuring Faces
The 3220 series features carbide measuring faces, providing durable contact surfaces for repeated internal measurement applications.
5. Ratchet Stop & Type C Design
The micrometer incorporates a ratchet stop for controlled measuring force. The 3220-300 uses the Type C configuration within the series and can be calibrated using suitable setting equipment.
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