Born Square: All GRS-16 squares feature a single-piece design that self-squares to 90° with no adjustments needed (and therefore, no points of failure in the future) The GRS-16 PE is much more than a guide rail square; it's the foundation of a broader system of TSO Products designed for interoperability. In fact, the GRS-16 PE serves as a connection method for the TSO Parallel Guide System. Once connected, you can repeatedly square and parallel rip multiple workpieces. Festool MFT/3 Compatibility Adjustments to key tolerances to better accommodate production variances observed in guide rail manufacturing The patented GRS-16 family solves this problem with a simple one-piece design that self-squares as it attaches to the guide rail. Once connected, the GRS-16 becomes a rigid extension of your guide rail, providing a precise 90° reference edge (or two, in the case of the GRS-16 PE) that won’t fall out of square over time. Selecting the Right Guide Rail Square

NEW! Rapid attachment feature: simply insert the square at any point along the guide rail and clamp it in place—no need to slide it into the guide rail from one of the ends or remove hose deflectors, clamps, or other accessories occupying the guide rail T-slot Accessory mounting holes tapped for M6 threads—enables connection to the TSO Parallel Guide System and Angle AccessoryDraw latch hook now features a resilient coating to grasp your guide rail and protect it from marring It’s too easy as a human to introduce errors I think. The slightest difference in the pressure you apply when seating the square can affect things greatly over that distance. Rail Square Systainer fully loaded: Includes Rail Square, TANOS Systainer³ M 112, Foam Insert, 30mm & 60mm bevel adaptors, MFT Grooved Adaptors & B-Collars, 2x 30mm Benchdogs (in line with B-collars) Special thanks to Eric at The Poplar Shop for his unexpected video review of the original GRS-16! Guide Rail Square Comparison Table

With production secured, Wim also took the opportunity to redesign the rail square – developing the second generation ‘hybrid’ model, which was expected to be available from April 2021. The latest Taiga Hybrid Rail Square is compatible with most guide rail profiles available on the market – fitting perfectly to all lengths of Festool, Makita, Triton, Evolution, Mafell, Bosch, and even the DeWalt profile guide rails. I don’t think you can ever completely trust a rail square as to me, there are so many tiny things you can do to affect it, over a distance.The GRS-16 is much more than a guide rail square; in fact, it's the foundation of a broader system of TSO Products designed for interoperability. Case in point: the TSO Parallel Guide System utilizes the M6 accessory mounting holes on the GRS-16 for attachment. Once connected, you can repeatedly square and rip multiple workpieces in a single operation. Technical Details Hybrid design fits perfectly to all lengths of Festool, Makita, Triton, Evolution, Milwaukee (latest red version), Mafell, Bosch and DeWalt profile guide rails. Threaded M6 accessory mounting holes enable connection to the TSO Parallel Guide System and Angle Accessory Consequently, the slightest vibration such as using the saw, or putting the rail against the wall temporarily between cuts, will very often cause them to come loose and the rail can slide off onto the floor, or sometimes I’m all set up ready to make the cut and I notice one is loose.