Hebei Yichuan Drilling Equipment Manufacturing Co.,Ltd has been in engaged in the production of roller-cone bit and PDC bit、HDD Hole Opener、 Drag bit. bit cutter for more than 20 years. we have kept our clients ahead of schedule and under budget by providing the highest quality products at the best prossible prices. We ship to more than 60 countries and serve industries such as Oil & Gas, water well,Constructio,Mining, Horizontal Directional Drill- ing(HDD), Geothermal and Environmental.Our exprerienced staff is here to assist you with everything from choosing the right bit to shipping around the globe. Yichuan uses advanced equipments including the latest CNC lathes, milling machi- ness and drilling machines.All products manufactured in accordance with API stan dards and clients'requirements.