HF

 SERIES BIT FOR HARD FORATION DRILLING

HF series bit has the advantages of long service life, high reliability, fast ROP and strong gage protection ability etc.HF series bit is the ideal choice for drilling in hard formations and high abrasive formations effectively and safely.

The size range of HF series bit is from 6 to 12 1/4 inch ,and IADC varies from 537 to 737.For example:8 1/2 HF637GHLM.