A Fixed Base Router uses a bit to cut shapes and profiles into the edge of boards, cut patterns and duplicate shapes, trim edging and laminates, make signs, run slots, rabbets or molding patterns around the edges of panels. With a fixed base router, the depth of cut is set before you turn the router on. Features to look for in a router include: HP of motor, variable speed, bit size and base configuration. Fixed base router accessories include jigs to make table legs, dovetail joints, and mortises, edge guides, bushings for sign making and router tables.