With the unique set up of the Powermatic PM-TJ Tenoning Jig (1799000), the guess work and uncertainty is taken out of the tenon cutting process.The Powermatic Tenoning Jig allows precise positioning without constant measuring of the tenon cut. This product features a guide bar with set screws to fit to your table saw miter slot and extruded handles that are conveniently located away from the blade. This tenoning jig also features a micro-adjust system to customize your tenon and can be used with a low profile riveting knife.