Cutting elements of gage row and first inner row of a drill bit

Details Cutting elements of gage row and first inner row of a drill bit Cutting elements of gage row and first inner row of a drill bit

2008-05-06

2010-06-29

Thompson, Kenneth (Department: 3672)

Boring or penetrating the earth

Bit or bit element

Specific or diverse material

C175S428000

Reexamination Certificate

active

07743857

ABSTRACT:
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 gave curve such that its point of contact at gage is away from the thinner portion of the layer of super abrasive material.

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