- Quick measurement of bore diameter
- Hardened steel, HRC50-58
- Satin chrome plated surface
- Aluminium oxided handle
| Code | Range | Graduation | Accuracy | L | Ød1 | Ød2 |
| 4852-1 | 1-6.5mm | 0.1mm | ±0.05mm | 62.5 | 7 | 0.8 |
| 4852-3 | 3-16mm | 0.1mm | ±0.05mm | 143 | 17 | 2.8 |
| 4852-15 | 15-30mm | 0.1mm | ±0.05mm | 165 | 31 | 14.7 |
| 4852-30 | 30-45mm | 0.1mm | ±0.05mm | 165 | 46 | 29.6 |
| 4852-45 | 45-60mm | 0.1mm | ±0.05mm | 167 | 61 | 44.3 |