Patent ID: 8721234

Claim:
A depth gauge for use with a drill bit having a front cutting portion, a rear shank portion, and an intermediate portion defining a recess, the depth gauge comprising: a body having a throughbore configured to receive the drill bit therethrough so that the intermediate portion is received in the body and the rear shank portion can be coupled to a tool holder of a power tool; a retention mechanism coupled to the body and configured to removably couple the body to the drill bit, the retention mechanism including (1) at least one jaw having a concave inner surface configured to engage the recess in the drill bit in a locked position and to disengage from the recess in an unlocked position, and (2) an actuation member selectively moveable in only a single unlocking direction to enable the at least one jaw to move from its locked position to its unlocked position; and a cap configured to be removably coupled to the body, while the jaw engages the recess in the locked position, in one of a first position relative to the body where the cap contacts a workpiece surface to prevent the drill bit from entering the workpiece more than a first depth, and a second position relative to the body where the cap contacts the workpiece surface to prevent the drill bit from entering the workpiece more than a second depth that is different from the first depth.