B-116 Impregnated Diamond Core Bit
| Size | B-116 | Design | Metric |
| Outer diameter MAX (mm) | 116.20 | Outer diameter MAX (in) | 4.575 |
| Outer diameter MIN (mm) | 115.82 | Outer diameter MIN (in) | 4.565 |
| Inner diameter MAX (mm) | 101.83 | Inner diameter MAX (in) | 4.009 |
| Inner diameter MIN (mm) | 101.58 | Inner diameter MIN (in) | 3.999 |
| Hole diameter (mm) | 116.5 | Hole diameter (in) | 4.58 |
| Core diameter (mm) | 101.7 | Core diameter (in) | 4.0 |
| Hole area (cm2) | 106.2 | Hole area (in2) | 16.47 |
| Core area (cm2) | 81.2 | Core area (in2) | 12.59 |
