Routing aid for OF 900, OF 1000, OF 1010, OF 1010 R, OF 1400, OF 2000, OF 2200. By means of the step cutter, a groove for a drop-down seal on doors can be routed on site without any problems. Routing the groove for multipoint locking systems is also possible. For secure guidance of the Festool router along narrow workpiece edges Side stops can be adjusted 60 mm on both sides with long guidance areas High-quality cutter device made from sturdy and solid acrylic glass Used, for example, for the reliable milling of automatic door seals Safe guidance of the router thanks to the movable legs