China Drill Bit / 7 7/8" IADC Code 542 / Mining / Water Well / Rock Drilling Tools / Tricone Bit / Rock Drill, Find details about China Tricone Bit, TCI from Drill Bit / 7 7/8" IADC Code 542 / Mining / Water Well / Rock Drilling Tools / Tricone Bit / Rock Drill
Basic Specification | |
Size | 7 7/8" |
200 mm | |
IADC Code | 542 |
Pin Connection | 4 1/2" API |
Bearing | Open bearing |
Operating Parameters | |
WOB | 15750-39380 Lbs |
RMP | 110-80 |
Air Back Pressure | 0.2-0.4 Mpa |
Formation | Medium soft formation with low compressive strengths such as shale, soft limestone, dolomite with interlayers and coal ore. |