1. The force balance design makes the drill has a good guiding, adapted to the downhole motor applied to directional drilling, with a small radial vibration;
2. The different structure of the patented PDC composite chip in the drill bit in the reasonable placement of the drill bit has a strong offensive and abrasive resistance;
3. Strong aggressive design makes the drill can acquire high mechanical drilling speed;
4. Dynamic flow field simulation technology is applied to hydraulic design, so that the bottom hole flow field optimization is conducive to improve the speed of chip discharge and mud-proofing bags.