Abstract: A woodcutting guide is set forth wherein an elongate guide surface maintains a cutting tool in alignment overlying a workpiece to be cut. The guide includes an elongate coextensive "T" slot with a first fixed arm directed orthogonally outwardly thereof, with a second movable arm spaced from the first arm positioned outwardly thereof wherein each arm terminates in a guide cylinder slidingly overlying a pipe clamp secured to the workpiece. A friction surface against the guide maintains adherence of a tool pressed thereagainst and enables the guide to be movably repositioned along the length of the pipe cylinder of the pipe clamp organization.