Insize 3661 High Precision Non-Rotating Spindle Digital Micrometers
The Insize 3661 High Precision Non-Rotating Spindle Digital Micrometer series is built for demanding measurement work where accuracy can't be compromised by spindle rotation. Each unit uses a non-rotating spindle design, so one turn of the sleeve advances the spindle without twisting against the workpiece or affecting the reading, and offers adjustable resolution across three settings — 0.01mm/.0005", 0.001mm/0.00005", and 0.0005mm/.00002" — for flexibility across different precision requirements. With .5µm repeatability and a measuring face flatness of 0.3µm, this series delivers the kind of consistency needed for high-precision inspection work. Available in ranges from 0-30mm (0-1.18") up to 275-305mm (10.83"-12.01"), the 3661 series is well suited for tool rooms, metrology labs, and quality control departments that need dependable, repeatable measurements at the top end of digital micrometer performance.
Key Features
- Non-rotating spindle design keeps measurement accuracy unaffected as the sleeve turns
- Adjustable resolution: 0.01mm/.0005", 0.001mm/0.00005", or 0.0005mm/.00002"
- .5µm repeatability for highly consistent, reliable readings
- Measuring face flatness of 0.3µm for accurate, even contact
- Measuring force of 5-10N for consistent, controlled contact pressure
- Button functions include mm/inch, max/min value tracking, preset value, hold, on/off, and zero
Specifications
| Specification |
Detail |
| Measurement Ranges Available |
0-30mm (0-1.18") up to 275-305mm (10.83"-12.01") |
| Resolution |
0.01mm/.0005", 0.001mm/0.00005", or 0.0005mm/.00002" (adjustable) |
| Repeatability |
0.5µm |
| Measuring Face Flatness |
0.3µm |
| Measuring Force |
5-10N |
| Accuracy |
±2µm (0-30mm range; varies slightly by range) |
| Button Functions |
mm/inch, max/min value tracking, preset value, hold, on/off, zero |
Items Included
- Insize 3661 high precision non-rotating spindle digital micrometer in the selected range
- Fitted storage case
- Instruction manual
Insize 3661 High Precision Non-Rotating Spindle Digital Micrometers Data Sheet