A right-angle joint jig comprising:
- a front member adapted and configured to be movably connected to a worktable for locking vertical adjustment movement;
- a top panel connected to and extending rearwardly from an upper end of the front member, the top panel being adapted and configured to retain a workpiece between a bottom side of the top panel and a top side of the worktable when the front member is so connected to the worktable;
- an adjustable router guide frame connected to a top side of the top panel, the router guide frame being adapted and configured to receive a plunge router having a horizontally oriented base and a plunge router bit with a rotational bit axis at fixed position relative to the plunge router base, so that the plunge router base is disposed on a top surface of the top panel within an adjustable horizontal planar guide frame area circumscribed by the router guide frame, so that a horizontal range of movement of the plunge router so received and disposed is determined by the guide frame area, the top panel having a small enough vertical thickness dimension to permit the plunge router so received and disposed to plunge the router bit into the workpiece so retained to an operative vertical level below a top surface of the workpiece, the router bit being operable by the plunge router to remove material of the workpiece disposed in a path of the router bit at the operative vertical level through the horizontal range of movement of the plunge router so as to form a slot over an area determined by a diameter of the router bit and said horizontal range of movement;
- and
- a drill guide, the drill guide retaining a drill bushing and being adapted and configured to produce vertical adjustment movement of the drill bushing relative to the workpiece so retained between the top panel and the worktable and to lock the vertical adjustment movement of the drill bushing at a selected vertical position of the drill bushing in front of the workpiece, the drill bushing in the selected vertical position being adapted and configured to guide a drill bit inserted therethrough so that the drill bit is operable to form a bore hole in the workpiece at a selected position on the front side of the workpiece.