US Patent 9364903 Drilling apparatus and method

A drill bit has a shank adapted to be attached to a power tool and a cutting portion adapted to drill a hole in a material. A collar is spaced along the length of the drill bit to set a depth distance that the drill bit is allowed to be inserted into a material being drilled. The drill bit further comprises a first engagement structure. A sleeve comprises a second engagement structure that is releasably engageable with the first engagement structure. The sleeve further comprises a coupling mechanism for connecting the sleeve to a fastener driver.