PQ3 Impregnated Diamond Core Bit
| Size | PQ3 | Design | DCDMA |
| Outer diameter MAX (mm) | 122.30 | Outer diameter MAX (in) | 4.815 |
| Outer diameter MIN (mm) | 121.80 | Outer diameter MIN (in) | 4.795 |
| Inner diameter MAX (mm) | 83.18 | Inner diameter MAX (in) | 3.275 |
| Inner diameter MIN (mm) | 82.93 | Inner diameter MIN (in) | 3.265 |
