Reddit mentions of Oshlun SDS-0842 8-Inch 42 Tooth Stack Dado Set with 5/8-Inch Arbor

Zero clearance insert

Dado zero clearance insert

That dado stack is decent. Not great, but OK. This one is a lot better and the best bargain dado stack

Irwin Marples 50 tooth blade. Lowes sells these if you don't want to order online. I have a few dozen table saw blades. This is by far the best blade short of a Woodworker II or Tenryu Gold Medal.

If you plan on working with 5/4+ hardwoods, get a 24 tooth diablo rip blade. It makes a big difference

Start with one GR Rripper

if you don't have a dial indicator, get one. You'll need it to adjust for runout

Decide on dust collection. You'll need to install the shroud if you use it, or leave it off if you don't. It's a huge pain in the ass to install after the fact, but can be done. A shop vac isn't recommended, but if you decide to give it a shot, you'll need a 4" to 2.5" reducer. Something like this will keep up pretty well if you just wanted to bite the bullet.

Decide how you are going to cross cut. I prefer a sled, some like a miter gauge. The included one sucks.

Osborne EB3 or the Incra 1000/HD

I have 6" from Oshlun that are truly the best value. I also have 8" Forrest Dado King which are very nice, but debatable over whether they are worth the money.

If you are going to do a ton of Fine Wood Working dados then get the Forrest, but otherwise the Oshlun is where the money should go.

Damn. Either there is some problem with the setup, quality control, or that is nowhere near the "worlds finest dado." I thought Forrest blades were supposed to be among the best anyway?

I'd go back through the setup, make sure everything is clean and check for burs everywhere. If you measured the blades off the saw and they weren't the same length, I'd call and see about a replacement because that is the problem. I don't know what their tolerances should be, but it sounds and looks like it's way too far off.

Edit: HOLY MOLY!! I just looked at the prices of those. Yeah, you should be calling someone. There is no way I'd spend that kind of money for that cut. I think they let a bad one slip out the door.

Just for comparative purposes, I have a Ridgid R4510, hardly the quality of a cabinet saw, and an Oshlun dado, I picked up for ~$60, and it cuts perfectly smooth. I would expect the same quality (or better) out of a blade that costs between $195 and $375.

I just bought this and am very happy with it.

Oshlun SDS-0842 8-Inch 42 Tooth Stack Dado Set with 5/8-Inch Arbor https://www.amazon.com/dp/B0012YF25Q/ref=cm_sw_r_other_awd_X8n1wbG1NCXW4

I got a 8" set from Oshlun for Christmas. I can't wait to use them! http://www.amazon.com/Oshlun-SDS-0842-8-Inch-Tooth-Stack/dp/B0012YF25Q