| HDD rock hole opener 14" rock hole opener with tricone bit cutter for horizontal directional drilling | |
| Size | 14inch |
| type | tungsten carbide insert TCI tricone cutter |
| single roller cone quantity | 4 |
| connection thread | 41/2" IF pin&box |
| application formation | medium soft with low compressive strength and harder abrasive stringers, such as shale, soft limestone, sandstone, dolomite, etc. |