Cabinet door routing set Set includes premier adjustable ogee rail and stile bits and panel bit with backcutter 99-761 and 99-571 Allows the woodworker to build doors from 5/8-in to 1-1/4-in thickness and any length long tenon construction for rock solid joints that last a lifetime Top portion of cutter, including bearing and spindle, is removed to produce the front of the long tenon profile for blind tenons, through tenons, or bridle joints Adjustable shims enable both a tight fit when using plywood panels and the ability to use thick panels from 5.5 mm to 6.35 mm Unique cutter geometry virtually eliminates tearout Features the Freud 99-571 two plus two raised panel bit with backcutter Two small wings that cut downward and two large wings that shear upward, produce an extremely smooth cut in hardwoods, softwoods and even plywoods Revolutionary design is combined with a backcutter so that, in one step, you can create a flawless raised panel door that is flush with the frame on both sides Perma shield coating to resist heat and pitch build up along with rust