Rotary Tricone Bits adopt optimally designed bearing structures and tungsten carbide inserts to withstand the extreme challenge of modern mining applications. Designs are continually evolving to increase drilling performance. High standards of quality control in manufacturing are implemented to ensure product reliability. Choices of bit type, design characteristics, and secondary features must achieve an optimal balance between the high rate of penetration (ROP) and long service life. When achieved together, these parameters enable a reduced total drilling cost (TDC) for our customers.