I bought this leveling tool to replace a Magnate 2709 surface planer with 3" cutting diameter (floor cleaning). The smaller inch in diameter was immediately noticeable, and while it might work for someone with a smaller (lower HP) router, my 3.5 HP porter cable. did a great job with the original 3" Magnate. Mogul who gave me a much cleaner finish I had a job to do and couldn't wait for a Mogul to sell out.