1、Tooth shape includes wedge-shaped tooth(X),wide top tooth(K),spon type tooth(S),conical-ended shape tooth(Y),hemi-spherical ended shape tooth(Y1),gage protection by diamond enhanced cutters on cone(F),flat diamond tooth(P).Different tooth types are selected according to different strata.

The strengthening of bits and inserts can effectively reduce the wear of tooth palms,improve the diameter protection performance of drill bits,and prolong the service life of drill bits in abrasive or directional wells or horizontal wells.

It is suitable medium soft with low compressive strength and harder abrasive stringers,such as hard shale,hard gypsolyte,soft limestone,sandstone and dolomite with stringers,etc.

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