US Patent 8117758 Scribe tool

A scribe tool includes a three-dimensional, polygonal block having two opposing ends with a plurality of planar, non-orthogonal surfaces formed therebetween. A bore extends from one of the ends to another and is offset from the block's central, longitudinal axis. Each planar surface is spaced a discrete distance from the central axis that corresponds to one of a plurality of conventional measurements. The tool allows a craftsman to form a trim line along an architectural item that conforms to surface irregularities on an adjacent wall.