The Dewalt Trim Router Jig is designed to be compatible with Festool rail tracks, allowing for precise and accurate routing tasks. The trim router's base is specially designed to seamlessly connect to Festool rail tracks, enabling smooth and controlled movement along the track for clean and professional results. Ideal for DIY enthusiasts and professionals alike, this tool combination offers versatility and precision in a compact and user-friendly package. Printed by a friend, not right pattern for my Makita rails.