Adjustable worm drive circular saw rip fence eliminates repeated measuring and marking on rip work. Allows you to make straight cuts by guiding the saw along the workpiece. Saves time when making repeated cuts. Steel construction. Fits SKIL saw models 5825, 367 (types 1, 4 and up), 5865, 825 (types 5, 6, 7, 10 and up), HD77, HD5825, HD5860, HD77M-22, HD77-72, HD77M.