Greatly enhances the capability of the Festool Guide Rail System by providing a faster, easier, smarter way to create consistent rip cuts. System works with any Festool FS/2 Guide Rail. Festool Table Saw Festool 203160 Parallel Guide Set For Imperial Guide Rail System Festool Track Saw The Parallel Side Fence (#201182) attaches to the Guide Rail and holds it at precise settings for highly accurate and repeatable cross and rip cuts. Offer consistent rip cuts up to 650mm (25 19/32 in) using two adjustable stops that engage the edge of the material parallel to the cut line. It is adjustable to cut stock from 5-1/2 to 25-19/32 (650mm) wide. Extension must be used with the Parallel Side Fence. Set is comprised of the Parallel Guides and Parallel Guide Extensions and offers savings versus purchasing these two products separately. The Parallel Guide Extension (#201183) attaches to the Parallel Guide (#201182) to make very narrow, repetitive cuts. Buy your Festool 203160 Parallel Guide Set for Imperial Guide Rail System at . 30 day ... The Extensions must be used in conjunction with the parallel guide . The parallel guide can be used with any length Festool FS/2 guide rail. WARNING: P Festool's Imperial (fractional) Parallel Guide & Extension System makes possible exactly that.