RIP FENCE ONLY as shown! Will fit a set of Align-a rip 24/24 or 24/12 guide rails. 24/12 refers to 24″ of cuttable length (see your measuring tape on your guide rail) on the right side of the blade and 12″ on the left side of the blade. NOTE – an Align-a-rip fence will only fit an align-a-rip rail, it will NOT fit an Craftsman XR rail or XRC rail.