Drill bit with canted gage insert

Details Drill bit with canted gage insert Drill bit with canted gage insert

E - Fixed Constructions

21

B

E21B 10/16 (2006.01) E21B 10/50 (2006.01)

Patent

CA 2242212

A rolling cone drill bit is provided that has gage inserts on the first row from the bit axis to cut to full gage diameter that have a cutting portion enhanced with a layer of super abrasive material. The gage cutting surface has a center axis that is canted to be more normal to the gage curve such that the its point of contact at gage is away from the thinner portion of the layer of super abrasive material.

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