Drill bit having enhanced stability

Details Drill bit having enhanced stability Drill bit having enhanced stability

1991-07-11

1993-01-12

Bagnell, David J.

Boring or penetrating the earth

Bit or bit element

Nonsymmetrical bit

175431, E21B 1046

Patent

active

051782227

ABSTRACT:
The present invention is a drill bit having a multi-level gage defining the outermost radius of the bit, at least one portion of the gage extending longitudinally closer to the bit face than another portion.

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