Feature:
1. For internal measurement.
2. Stainless steel contacts hardened.
3. Supplied with 0.01mm or 0.001mm dial indicator.
Specification:
| Order No. | Measuring Range | Measuring Depth | Graduation |
| KM-DB10 | 6~10mm | 40mm | 0.01mm |
| KM-DB18 | 10~18mm | 100mm | 0.01mm |
| KM-DB35 | 18~35mm | 125mm | 0.01mm |
| KM-DB60 | 35~60mm | 137mm | 0.01mm |
| KM-DB150 | 50~150mm | 158mm | 0.01mm |
| KM-DB250 | 150~250mm | 366mm | 0.01mm |
| KM-DB450 | 250~450mm | 484mm | 0.01mm |
