we ‍specializes in designing, manufacturing,marketing and serving the high performance diamond bits ,PDC bit ,diamond pdc bit ,diamond corebit, matrix body pdc bit, steel body pdc bit,impregnate core bit,anddrilling tools used in petroleum industry. The company is established bythe top experts of the field, and equipped with advanced equipments andfacilities
Great has built high-performance diamond drill bit production lines with advanced technologies, complete equipment and normalized management, and formed a large-scale production capacity of oil diamond dill bits in 3"-17.5". Its diamond drill bits are produced and teste...

Our diamond bits named Great, which sizes rangingfrom 3'' to 17-1/2''.All the products are made in accordance with theAPI spec7-1, meanwhile our quality assurance system and our environmentmanagement system have been respectively awarded the ISO9001 certificateand ISO14001 certificate. Furthermore, the experienced andknowledgeable service team will ensure the superior performance of ourproducts in both the domestic and international markets.