Patent ID: 7694756

Claim:
A drill bit, comprising: a bit body intermediate a working face and a shank end adapted for connection to a downhole drill string; the working face comprising at least three fixed blades converging towards a center of the working face and diverging towards a gauge of the bit; at least one of the plurality of blades comprising a cone region adjacent the center of the working face; the cone region increasing in height away from the center of the working face and towards a nose portion of the at least one blade; an opening being formed in the working face at the center of the bit along an axis of the drill bit's rotation; the opening leading into a chamber with at least one wall; an indenting member being disposed within and extending from the opening and being substantially coaxial with the axis of rotation; and the indenting member being rotationally and axially fixed to the wall of the chamber and being made of a material harder than the bit body; wherein a closest cutting element secured to the at least one blade comprises a distal most end located a distance from the working face, wherein the indenting member does not extend beyond the distance.