Cangzhou Great Drill Bits Co., Ltd was founded in 1998, and the company devotes itself to the development, design, production and sales of PDC drill bit, which is one of the largest companies for the manufacture of PDC drill bit in Asia. The modern plants and advanced facilities are full-equipped, and it has an annual production capacity of above 10,000 units. And Great can manufacture the PDC drill bit in various specifications of 3"~26".