Hejian Hengji Bit Manufacture Co.,Ltd is established in 2012.It is located in hejian,hebei province.It is emerging enterprises in Chinese bit industry.It is mainly engaged in the development?production and sales of all kinds of bits.? It has developed and mass-produced products 3 to 26 inches series steel tooth bits and tricone bits,various types of PDC bits,core bits and production and processing assembly 0.6m to 3 m large diameter drill bits. We built flexble product line of bit centered by the CNC machine,perfect quality assurance system.We have gotten the quality certificate of ISO9001.