- Measure the web thickness of drills, small grooves and keyways
- Resolution 0.001mm/0.00005″
- IP54 dust/waterproof
- Button function: on/off, set, mm/inch, ABS/INC, data output
- Data output
- SR44 or LR44 battery, automatic power off
- Ratchet stop
- Carbide tips
- Supplied with setting standards (except 0-25mm/0-1″)
- Optional accessory: data output system
| Code | Range | Type | Accuracy | L | b |
| 3530-25A | 0-25mm/0-1″ | A | 4μm | 57 | 32 |
| 3530-50A | 25-50mm/1-2″ | A | 4μm | 82 | 44.5 |
| 3530-75A | 50-75mm/2-3″ | A | 5μm | 107 | 57 |
| 3530-100A | 75-100mm/3-4″ | A | 5μm | 132.6 | 69.5 |
| 3530-25BA | 0-25mm/0-1″ | B | 4μm | 57 | 32 |
| 3530-50BA | 25-50mm/1-2″ | B | 4μm | 82 | 44.5 |
| 3530-75BA | 50-75mm/2-3″ | B | 5μm | 107 | 57 |
| 3530-100BA | 75-100mm/3-4″ | B | 5μm | 132.6 | 69.5 |
