| Specification | Details |
|---|---|
| Brand | INSIZE |
| Model | 3331-75A |
| Product Type | Micrometer With Dial Indicator |
| Measuring Range | 50–75mm |
| Micrometer Head Graduation | 0.01mm |
| Micrometer Head Accuracy | 5µm |
| Anvil Retracting Range | 8mm |
| Measuring Faces | Carbide |
| Indicator | Optional / Not Included |
| Dimension L | 117.6mm |
The INSIZE 3331-75A Micrometer With Dial Indicator is a precision mechanical measuring instrument designed for accurate dimensional inspection, machining, and repetitive production measurement. It provides a 50–75mm measuring range, 0.01mm micrometer head graduation, and 5µm micrometer head accuracy. The micrometer features an 8mm anvil retracting range and carbide measuring faces for reliable repeated measurement. It is designed to accept compatible dial or digital indicators, which are optional accessories and not included with the standard micrometer. The 3331-75A is suitable for CNC machining, quality control, tool-room operations, production inspection, and applications requiring repeatable dimensional checking.
Key Features
1. 50–75mm Measuring Range
The 3331-75A provides a 50–75mm measuring range, making it suitable for measuring external diameters, thicknesses, shafts, components, and precision-machined parts within this range.
2. Fine 0.01mm Graduation
The micrometer head features 0.01mm graduation, allowing users to take clear and consistent mechanical measurements during machining, inspection, and manufacturing operations.
3. 5µm Micrometer Head Accuracy
INSIZE specifies 5µm micrometer head accuracy for the 3331-75A, providing a suitable level of precision for dimensional inspection and quality-control applications.
4. Compatible With Optional Indicators
The 3331-75A is designed for use with compatible dial or digital indicators. INSIZE lists optional indicators with 0.01mm graduation/resolution. The indicator is not included with the standard micrometer.
5. 8mm Anvil Retraction & Carbide Faces
The micrometer features an 8mm anvil retracting range and carbide measuring faces, supporting repeated measurement and production inspection. The 3331 series is designed to meet DIN 863-3.
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