The most important part in the working process of DTH Hammer is the drill bit of the drilling rig. Therefore, the drill bit of the drilling rig is required to be wear-resistant. The cutting edge of each scraper blade is inclined to the horizontal plane, and the cutting edge of each scraper blade is inlaid and welded with diamond compound. Carbide blocks are inlaid and welded on the sheets and sides. Because the blade of the doctor blade is inclined to the horizontal plane, it is beneficial to drill into the softer stratum on the surface.
　　Inlaid and welded diamond on the edge of the drilling rig is beneficial to break the rock with higher hardness and increase the drilling speed. Inlaid hard alloy block on the side of the scraper blade of the drilling machine can ensure that the well does not become smaller while drilling, which is beneficial to the completion operation.
　　 The well-drilling rig is equipped with a drill bit that can continuously drill 700 to 800 meters of inlet and outlet, and can drill more than 15 continuous wells of 50 meters deep, which greatly improves the work efficiency and cost-effectiveness of DTH Bit.