Abstract: An electrical outlet box having a center threaded post is fastened solidly to a wall stud at a prescribed elevation above floor level. A section of dry wall is brought into position and a dry wall penetrating means temporarily telescoped with said post is employed to produce a locator opening through the dry wall section coaxially with the outlet box. A cutter means centered on the locator opening is employed to remove a plug of dry wall to thereby form a dry wall opening in registration with the mouth of the outlet box. The dry wall penetrating means is separated from the outlet box post and a unit for switches and/or receptacles including a cover plate is introduced through the dry wall opening into the mouth of the outlet box and secured by engagement of a single center screw fastener with the threaded post.

Abstract: An electrical outlet box having a center threaded post is fastened solidly to a wall stud at a prescribed elevation above floor level. A section of dry wall is brought into position and a dry wall penetrating means temporarily telescoped with said post is employed to produce a locator opening through the dry wall section coaxially with the outlet box. A cutter means centered on the locator opening is employed to remove a plug of dry wall to thereby form a dry wall opening in registration with the mouth of the outlet box. The dry wall penetrating means is separated from the outlet box post and a unit for switches and/or receptacles including a cover plate is introduced through the dry wall opening into the mouth of the outlet box and secured by engagement of a single center screw fastener with the threaded post.