Festool 490250 Bearing Guide KLS-D22-OFK smooth and precise flush trimming performance specifically designed for the HW D 22/8-OFK edge trimming router bit. Crafted from precision-machined steel, this ball bearing includes an integrated mounting screw that easily slides onto the router bit mounted on the trim router. It ensures a consistent flush reference point, guiding your cuts cleanly and accurately along the edge of your workpiece for professional results every time. Model Number: 490250