Drag bit with utility blades

Details Drag bit with utility blades Drag bit with utility blades

2011-04-19

2011-04-19

Gay, Jennifer H (Department: 3676)

Boring or penetrating the earth

Bit or bit element

With bit guide or bore wall compacting device

C175S393000

Reexamination Certificate

active

07926596

ABSTRACT:
A drill bit comprises a bit body and a plurality of cutting blades extending radially from the bit body, the plurality of cutting blades further comprising cutting elements disposed thereon. The drill bit also comprises a plurality of utility blades extending radially from the bit body, the plurality of utility blades being free of cutting elements.

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