|
Parameter
|
RCB
|
DCB
|
ADCB
|
|---|---|---|---|
| Hole diameter (in) | 9.88 | 7.25 | 7.25 |
| Core diameter (in) | 2.31 | 2.31 | 3.27 or 3.35 |
| Hole cross section (in2) | 75.20 | 41.28 | 41.28 |
| Core cross section (in2) | 4.20 | 4.20 | 8.40 or 8.79 |
| Area of material removed (in2) | 72.39 | 37.08 | 32.49 or 32.88 |
| Kerf (outer diameter minus inner diameter) (in) | 3.78 | 1.95 |
Note: RCB = rotary core barrel, DCB = diamond core barrel, ADCB = advanced diamond core barrel.