HF series Roller cone bit

HRFighter is a series of good bit for hard & abrasive formations. Effective cutting structure is designed based on dull bit analysis & research, abundant drilling simulation and 3D computer simulation. Problems of cutter breakage, shaving cutter, bit diameter shrinkage and coring out normally found in drilling hard formations are eliminated through field testing. Bit life is sufficiently prolonged and ROP is increased by using cutting elements of highly wear and impact resistances. HF series bit is the ideal choice for effective and safe drilling in hard formations such as tuffstone, quartzite and granite, etc.