Abroad has been very importance of new cutting teeth, using different forms of cutting teeth, a variety of new products have been developed

PDC bits are geological drilling industry has been more widely used, but mainly for drilling soft to medium hard homogeneous formation, but also not suitable for drilling hard formations. Drilling workers at  cutting tools  in recent years gradually in different strata of PDC cutting teeth the best structure and the best fabric tooth design, PDC bit better for the geological drilling industries. PDC cutter PDC bit is the basic cutting units, on the merits of its structural performance PDC polycrystalline diamond  has a decisive influence. Has always attached great importance to domestic and foreign research new cutting teeth, the use of different forms of cutting teeth, has developed a variety of new products, more representative of a  Synthetic diamond , pre-chamfered edges to strengthen the tooth, a protective layer covering cutting teeth, teeth and other composite structures. In the application of certain conditions, these special cutting teeth morphology significantly improved performance.