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L Series PDC

Description
Patent No.: ZL200920205057.X
 
By changing the end surface of a PDC’s drilling teeth from a plane to a curved surface, “scraping” is then changed into “ploughing” in the working principle. This speeds up the displacement of rock chips and reduces the resistance against the cutters, greatly improving their rock-crushing efficiency and the speed of the drilling bits. The arch-like structure notably improves the overall impact resistance of the cutters.