Features :
1. Force balanced, resist impact to the blade during high-speed drilling, to make bit work stable.
2. Plus wear knot section, reduce collision in the high-speed rotational vibration.
3. Patented matrix formulation, extended bit life.
4. Optimal hydraulic design, easy to move out the drill cuttings and cooling.
5. Equipped with back reaming teeth.
6. The cutter is high performance to increase the ability of anti-impact and anti-abrasive
Size available
No | Size Available | |
Inch(in) | Metric(mm) | |
1 | 7 7/8 | 200.0 |
2 | 8 1/2 | 215.9 |
3 | 9 1/2 | 241.3 |
4 | 12 1/4 | 311.1 |
5 | 17 1/2 | 444.5 |
No | IADC Code | Recommendation | |
WOB(KN/mm) | Rotary Speed (rpm) | ||
1 | 117 | 0.35~0.8 | 240~80 |
2 | 127 | 0.35~0.9 | 240~70 |
3 | 437 447 | 0.35~0.9 | 240~70 |
4 | 517 527 | 0.35~1.0 | 220~60 |
5 | 537 547 | 0.45~1.0 | 220~50 |
6 | 617 627 | 0.45~1.1 | 200~50 |
7 | 637 | 0.5~1.1 | 180~40 |
We welcome specific request to meet your requirements!
Please contact us for more information!
