[johnjory]

We would like to buy a couple 8 1/4 saw blades for new Dewalt 7485 table saw. I have been looking at several brands and see that many use the Diablo's in most Youtube video's.
I read the riving knife is .063 thick and the kerf on the blade must be bigger than the knife.
I would prefer to go with recommended blades for the Dewalt just for the price difference, although I would certainly spend a little more on the Diablo if they last a bit longer and make cleaner cuts.
This saw came a 24 tooth blade. We read that the factory blade will not be the greatest and a 40 tooth is more a combination blade for just about everything else.
We would like to get a 40 tooth and possibly a 60 tooth to have on hand for the different uses making cleaner cuts.
Our plan is to make some bookcase type shelves, corner cabinets, along with a wall unit in the future.
We are thinking about making all these things out of pine.

The Diablo blades, at least the 7-14" ones I use create a kerf of 1/16" or 0.0625" close enough to .063 to not make a difference for you. I use Diablo 7-1/4" 60 tooth blades in my table saw a lot. They are beautiful blades for cross cutting anything up to 1-1/2" thick. They are cheaper to use and throw away than having my 10" blades sharpened. I also use them for cutting expensive wood like ebony because the thin kerf doesn't waste much. For general use a combination blade is OK and your 24 tooth 8-1/4" blade is about equivalent to a 30 tooth 10" blade which would be considered a ripping blade. I like most DeWalt tools, I have a lot of them, but I think Freud Diablo blades are better than DeWalt's. If you want the very best blades I recommend Forest but they are pricey.