Guide rail adapter for use with the OF 900, 1000 and 1010 routers in combination with the FS guide rail system. Maximize the versatility of your Festool router and guide rail system by using the guide stop to adapt the Festool OF 1010 router for use with the FS guide rail system for perfectly guided, straight routing. The guide stop attaches quickly and easily using two rods included in the scope of delivery of the OF 1010 router.