
| Graduation 0.01mm |
| Measure width of grooves inside bores |
| Non-rotating spindle |
| Two graduations for inside and outside measurement |
| Code | Range (outside) | Range (inside) | Accuracy |
| 3287-25A | 0-25mm | 1.6-26.5mm | 10μm |
| 3287-50A | 25-50mm | 26.5-51.5mm | 10μm |
| 3287-75A | 50-75mm | 51.5-76.5mm | 10μm |
| 3287-100A | 75-100mm | 76.5-101.5mm | 10μm |