Festool 490249 Bearing Guide KLS-D 15,8-OFK is a ball bearing designed to deliver smooth and precise flush trimming performance. Crafted from precision-machined steel, this bearing features an integrated screw that slides directly onto the router bit mounted on your trim router. It ensures a consistent flush reference point, guiding the cut cleanly along the edge of your workpiece for accurate results every time. Model Number: 490249