Some joinery operations (e.g., raised panel, lock miter, drawer lock, etc.) require the workpiece to be stood on edge while held vertically against the fence as the workpiece travels past the bit. With the typical short fence on most router tables, it is challenging to properly and safely support tall or wide boards on the edge.
ChipsFly has an answer with our Vertical Support Bar. After attaching it onto the top T-Slot on the fence, the steel bar rides high above the router table top, extending the fence height to better support tall or wide boards on the edge.