1.The use of new surface wear-resistant materials, more effective use of positive and negative ions to prevent mud package more effectively. 2. Optimize the structure design, increase the narrow area in the design of the drill bit, deepen the channel, improve the thickness of the blade reasonably, so as to increase the flow passage area in the use of the drill bit in the maximum range, and improve the chip removal ability of the drill bit. 3. Using bottom-hole simulation and nozzle optimization design, the number and position of nozzles are reasonably arranged, which can prevent mud bag more effectively. 4.We also have other high quality drill bit products. 5.If you wann it please contact me.