1.Six Blades and Capacious Flume

Symmetrical parabola crown profile,asymmetrical blades ,cuttersare distributed as curve and the gauge is designed spiral. Flowroomage is optimal design so that mud and rock granule can be cleareasily in drilling.

2.High wear resistance cutters.High performance PDC cuttersoptimal designed highly increase efficiency of drilling.

3.Oppose-circumnutation design.The load on bit is balanced,andjournal libration is decreased as well as good performance indirectional drilling.

4.This series of bits are suitable for medium to hardformation.