Patent ID: 6994498

Claim:
A lockset drilling guide for use with a first door having a door face and a first door edge of a first width and a second door having a door face and a second door edge of a second width, comprising: a frame defining an opening in said frame, said opening being aligned with the center of either the first or second door edge, said frame comprising a first flange and a second flange mounted perpendicularly thereto, said second flange supporting surfaces for contacting the door face, said surfaces defining a plane where said plane is coextensive with said door face; and a positioning member mounted on said frame, said positioning member movable from a first position to a second position with respect to said frame; wherein said positioning member laterally displaces said opening relative to said plane when said positioning member is moved from said first position to said second position such that the opening is aligned with the center of either the first or second door edge.