Importance

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Abstract

An adjustable guide assembly to guide a cutter bit of a tool device about a cutting surface of a workpiece. The guide assembly includes an elongated first guide rail having a first abutting surface adapted to abut a first side wall of the workpiece, and a second guide rail spaced-apart from the first guide rail, and having a second abutting surface adapted to abut a second side wall of the workpiece. A base member is positioned over the first and second guide rails, and includes a tool support surface and an opposed workpiece support surface. The base member includes a contacting wall defining a bit passage therethrough. A first and second interconnection assembly is configured to releasably lock the first and second guide rail, respectively, to the base member in a manner enabling the first guide rail to pivot about a first axis substantially perpendicular to a longitudinal axis of the first guide rail, and the second guide rail to pivot about a second axis substantially perpendicular to a longitudinal axis of the second guide rail, respectively. Further, the first interconnection assembly and the second interconnection assembly enable the first guide rail and the second guide rail to slide along the base member along respective paths adjacent to the bit passage. The first guide rail and the second guide rail are adjusted to abut the workpiece first side wall and the workpiece second side wall in a manner releasably positioning a targeted cutting region of the workpiece cutting surface in the bit passage.

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First Claim