The Freud 1-17/32-Inch Divided Light Cabinet Door Bit Set produces a variety of styles of glass pane doors. Simply choose your pattern and let these bits do most of the work. Made for use on table-mounted portable routers, this set cuts all composition materials, plywood, hardwood and soft wood. These bits feature a kickback reducing design for safety and are computer-balanced to insure vibration-free operation at speeds that are a safe margin above the typical 22,000 RPMs of most routers. This set is covered by Freud's limited lifetime warranty.