My quest for a dado blade began on eBay where, after numerous searches, I picked up an older 7″ adjustable dado with carbide blades. The first time I used it I discovered that my contractor saws won’t hold most blades — the shaft diameter was right, but there weren’t enough threads to hold the blade on. So I did some additional research, found out that I’d need to use a smaller blade, and ended up with the Craftsman 6″ Stacked Dado Blade.
This stacked blade cuts a fairly smooth bottom. I built a couple of beehives, so I had to make plenty of box joints and grooves with the dado — it performed great, and the boxes turned out great.
The blade comes with two 8-1/16″ chippers, a handful of cardboard shims, and two outside blades that cut 1/8″ each. The blade will cut up to about a 1/2″-wide dado and will fit on saws with a 5/8″ arbor. Even though I have no wear on my blades yet, my only wish is that these were made with carbide tips.
The Craftsman 6″ Stacked Dado Blade sells for $37.