After years of research work, CSC engineers developed new types of “GS” series steel body PDC bits on the basis of successful type of “G”  series. This line is further optimized by adopting the theory of force balance, hydraulic balance and cuttings removal balance.

As the type is of specific steel body, GS series is more flexible in the application of complicated and changeable formation; various kinds of patent cutters can be selected as for the specific formation and customers' requirement; the spiral blade with up-rake s make the bit more aggressive and can obtain the higher ROP; the patent painting make the bit body good erosion-resistant, greatly avoid balling-up; the strengthened gauge design improve the wear-resistance, greatly prolong the bit working life.