China API / Tricone Bit / Sealed Bearing / 9 7/8" IADC Code 845 / Rock Drilling Tools / Drill Bit, Find details about China Rock Drilling Tools, TCI from API / Tricone Bit / Sealed Bearing / 9 7/8" IADC Code 845 / Rock Drilling Tools / Drill Bit
Basic Specification | |
Size | 9 7/8" |
250 mm | |
IADC Code | 845 |
Pin Connection | 6 5/8" API |
Bearing | Sealed bearing |
Operating Parameters | |
WOB | 49375-79000 Lbs |
RMP | 80-50 |
Air Back Pressure | 0.2-0.4 Mpa |
Formation | Very hard and abrasive formation with high compressive strengths such as magnetite quartzite, quartzite, granite. |