| Specification | Details |
|---|---|
| Brand | INSIZE |
| Model | 3581-S100 |
| Product Type | Digital Screw Thread Micrometer |
| Measuring Range | 75–100 mm / 3–4 inch |
| Resolution | 0.001 mm / 0.00005 inch |
| Measuring Tips | Included |
| Tip Configuration | 6 pairs, metric & unified thread |
| Thread Angle | 60° |
| Spindle Type | Non-Rotating Spindle |
| Thimble / Force Control | Ratchet Stop |
The INSIZE 3581-S100 Digital Screw Thread Micrometer is a precision digital measuring instrument designed for accurate measurement of the pitch diameter of screw threads. It provides a 75–100 mm / 3–4 inch measuring range with 0.001 mm / 0.00005 inch resolution, making it suitable for detailed thread inspection and quality-control applications. The S100 model includes six pairs of measuring tips for metric and unified threads with a 60° thread angle. It also features a non-rotating spindle, ratchet stop, digital display, data output, and automatic power-off, making it suitable for CNC machining, manufacturing inspection, tool rooms, metrology, and precision engineering applications.
Key Features
1. 75–100mm Measuring Range
The 3581-S100 provides a 75–100 mm / 3–4 inch measuring range, making it suitable for measuring the pitch diameter of compatible larger screw threads and threaded components.
2. 0.001mm Digital Resolution
With 0.001 mm / 0.00005 inch resolution, the micrometer provides detailed digital readings for precision thread measurement and dimensional inspection.
3. Six Pairs of Measuring Tips Included
The S100 is supplied with six pairs of measuring tips for metric and unified threads with a 60° thread angle. The tip ranges cover different thread pitches, providing flexibility for a variety of screw-thread inspection applications.
4. Non-Rotating Spindle & Ratchet Stop
The non-rotating spindle helps maintain consistent contact with the workpiece, while the ratchet stop supports controlled measuring force and repeatable readings.
5. Digital Functions & Data Output
The micrometer includes functions such as on/off, set, mm/inch, and data transmission, along with data output and automatic power-off. This makes it convenient for workshop inspection and compatible data-management workflows.
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