I cut mine on a table saw with a regular blade, not a dado. what I first do is lay two 2x4's about 12" long on both sides of the blade with ridge fence set at 3 1/2 inches from blade, set hive body on the 2x4's centered on saw blade, clamp hive body to ridge fence, start saw and raise saw blade until you hear it hit the hive body, as soon as it touches the wood raise blade just one revolution from that point, then leave blade raised just that one revolution then start turning you angle adjustment all the way till it is at 45 degree's then turn back straight up and raise blade another revolution up and repeat angle like before, it takes my table saw 4 raises to cut factory hand hold. hope this is easier to understand than it was to try to explain.