 |
Basical Specification | |
Size of bit | 8 1/2’’ |
Number of Blades | 5 |
Primary Cutter Size | 13mm |
Nozzle Qty. | 7NZ |
Thread Connection | 4 1/2 REG |
Operating Parameters | |
RPM (r/min) | 60~300 |
WOB(KN) | 20~110 |
Application | Medium-hard to hard formations with low compressive strength, such as hard shale, limestone, sand-stone, dolomite, hard gypsum, marble, etc. |
Basical Specification | |
Size of bit | 8 1/2’’ |
Number of Blades | 5 |
Primary Cutter Size | 13mm |
Nozzle Qty. | 7NZ |
Thread Connection | 4 1/2 REG |
Operating Parameters | |
RPM (r/min) | 60~300 |
WOB(KN) | 20~110 |
Application | Medium-hard to hard formations with low compressive strength, such as hard shale, limestone, sand-stone, dolomite, hard gypsum, marble, etc. |
