TOH Tested: Sliding Compound Miter Saws

Mark the desired depth across the end of scrap stock. Unplug the saw, loosen its depth stop, and lower the blade until its lowest tooth hits the mark. Retighten the stop. Now shim the stock away from the fence so that the lowest tooth meets the back edge of the work-piece. If a test cut looks good, cut each side of the dado, then make repeated cuts to remove the material in between.