Drilling for mine water and electricity, transportation, etc. Cutter to choose high quality diamond compact (PDC), drill adopts high wear-resisting, high toughness, high quality special metal materials, has a strong resistance, high impact toughness, and reducing, the drilling efficiency high characteristic, increase efficiency of the drilling, hole rate is high, can improve the construction efficiency, reduce construction intensity of labor, and has extensive adaptability and in the formation of f 12 or less all can use.