Patent ID: 8276482

Claim:
A bit for removing a fastener having a security post and a direction of engagement, the bit comprising: an elongated shaft with a longitudinal axis, the shaft having a first end, and a second end, the first end terminating in a tip region having a recess disposed substantially along the longitudinal axis; a plurality of cutting edges extending radially from the tip region, the cutting edges configured to cut into the fastener when the bit is rotated in a direction opposite to the fastener's direction of engagement, a plurality of non-cutting edges extending from the tip region, wherein the cutting edges and non-cutting edges alternate with one another, and a plurality of frusto-conical traction surfaces each extending from one cutting edge to a non-cutting edge, wherein the cutting edges and non-cutting edges alternate with one another, wherein each cutting edge defines an angle to the longitudinal axis of the bit, and wherein the second end of the shaft is configured to be received by a chuck of a tool which provides rotational torque.