| Specification | Details |
|---|---|
| Brand | INSIZE |
| Model | 3331-25A |
| Product Type | Micrometer With Dial Indicator |
| Measuring Range | 0–25mm |
| Micrometer Head Graduation | 0.01mm |
| Micrometer Head Accuracy | 4µm |
| Anvil Retracting Range | 8mm |
| Measuring Faces | Carbide |
| Indicator | Optional |
The INSIZE 3331-25A Micrometer With Dial Indicator is a precision mechanical measuring instrument designed for dimensional inspection, machining, and repetitive production measurement. It provides a 0–25mm measuring range, 0.01mm micrometer head graduation, and 4µm micrometer head accuracy. The micrometer features an 8mm anvil retracting range and carbide measuring faces for durable contact during precision measurement. The 3331-25A is designed to accept compatible dial or digital indicators, which are optional accessories and not included with the micrometer. It is suitable for machine shops, CNC machining, quality inspection, tool rooms, and production environments where Go/No-Go or repeat measurement is required.
Key Features
1. Precision 0–25mm Measuring Range
The 3331-25A has a 0–25mm measuring range, making it suitable for measuring small external dimensions, diameters, thicknesses, and precision-machined components.
2. Fine 0.01mm Graduation
The micrometer head provides 0.01mm graduation, allowing users to take clear and consistent mechanical measurements during inspection and manufacturing operations.
3. 4µm Micrometer Head Accuracy
INSIZE specifies 4µm micrometer head accuracy for the 3331-25A. This makes it suitable for precision dimensional inspection and quality-control applications.
4. Compatible With Optional Indicators
The 3331-25A is designed to accept compatible dial or digital indicators. The indicator is optional rather than supplied as part of the standard micrometer. INSIZE lists compatible indicator options including models with 0.01mm and 0.001mm graduation/resolution.
5. Carbide Measuring Faces & 8mm Anvil Retraction
The micrometer features carbide measuring faces and an 8mm anvil retracting range, providing a practical configuration for repeated measurement and production inspection. It is designed to meet DIN 863-3.
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