I'm redoing my large clamp rack, and to hold in the parallel clamps I need to make dados 2-1/2" deep in wood. My SawStop ICS maxes out with my Freud dado set to about 2-1/4".

These are dados at repeating distances, so I made a typical jig for my miter sled that had a wood plug to place in subsequent slots so that the distance between dados is constant.

Clamp Rack Dados.jpg

I was wondering what people thought the best way to make these is. I can modifying the sled on my router table with a taller bit, although the odd width might make that a little challenging getting the right sized bit. And 2-1/4" is definitely a tall router bit.

Any other thoughts?