DEWALT Dado Juego de cuchillas de 8 pulgadas, 24 dientes (DW7670)

I am very happy with this dado set. The storage case does a great job of keeping the blades and chippers separated so they don't damage each other. The dados are very clean, and it works fine with my Professional Saw Stop.

I had my doubts from reviews on mismatched cutter sizes and being too large for the sawstop brake.Fits the sawstop professional just fine. Stacked up to almost 1” it ran true and cut very very clean both on the wings and flat on the bottom.The hard case is quite well organized with sections for everything. Slightly annoying that the cutters all stack so you need to swap through some portion of the stack every time unless you always or never use the 1/16 and 3/32 cutters.Honestly, it’s the nicest set I’ve owned and that includes one that cost twice as much.

This works well in my dewalt bench saw. It has to be 8 inch blades to fit. Don’t search for 10 inch Datto blades as the dust shields will not take them.

Great product does a neat and accurate cut

De Walt stuff generally is pretty good so although I haven't used it yet, I expect it'll live up to its reputation. Of course you pay for that however (in my case) I have to balance that against the fact that it isn't available locally (or if it is it'll cost an arm, a foot and my first born). The "Made in China" on the packaging does however put a question mark under that.What did surprise me was that there are a couple of different thicknesses of chipper blades. I had assumed that they would be all the same thickness. I was also pleased to note that the shims have their thickness printed on them (weirdly, all except two of the 0.010"). Being in a metric country, I will of course have to put labels into the case for the metric equivalents - not a big deal.Another slight weirdity is that thicknesses are given for all chippers and shims but not the main blades themselves which merely states their diameter. It is possible to infer from the dado widths shown on the packaging that the smallest dado is 1/4" inferring that each blade is 1/8" thick. It would have also have been nice if the visual dado width chart had been included on a piece of paper as opposed to being printed on the outside of the disposable packaging.The purpose of the shims of course is to widen the dado being cut. It's my intention to pair the dado set with the KM-1 Kerf Maker from Bridge City Tool Works... well sort of. Let me explain all of that... Readers familiar with dado sets will know that it can take quite a lot of trial and error to cut a dado to the exact width required. There's test cuts, adding and removing chippers and shims etc so it can be quite a drawn out process. What's needed is a jig that can allow for the blade width and take into account the width of the dado required. The KM-1 does this.Now, although I'd like to actually buy a proper KM-1, being on the other side of the world means there's a whole bunch of things which simply aren't available to me (that has to be balanced against not having any nuclear tipped missiles pointed at us). There is however a couple of guys on YouTube who has actually made a home built version of the KM-1. Okay, its not precision machined etc but homemade versus not being able to get one at all still wins hands down. The only tricky part to watch is that the dado blade width has to be markedly narrower than the desired dado (this sounds weird but take my word for it, this is the way it works). This however ties in neatly with the fact that my saw arbour (like many other saws) is too short to support the full dado stack,I should also mention that you can use the KM-1 with single saw blades as well as other machines such as routers and bandsaws so it's by no means a "one-shot" tool.I'll post a follow up later (if warranted).Addendum 1:Well it took a while but I finally got the opportunity to start matching the dado set with my table saw (actually a job site saw). The manufacturers blade comes with two thick customised washers that sandwich the blade into place.. The locking lever for the arbour protrudes into this space so it was necessary for me to follow suit and also pack out the dado blade(s) with washers.I must admit to being disappointed as I could barely get a dado width above 1/4" (1/4" plus 1/32")... barely worth while having a dado set at all. The limiting factor being of course the length of the arbour. Luckily I managed to find some thinner washers (which also had the advantage of having much less slop than the first set).The second set of washers allowed me to 'cram' a 1/2" dado onto the arbour which was about all I could hope for. I used the word cram as there's literally no excess threading showing on the arbour. I must admit that having such a low excess safety factor does concern me slightly however I don't consider this situation to be dangerous. If there was even a hint of that I wouldn't proceed further. You can't be too careful with something spinning at 38,000 RPM.The`thinner washers do change the zero on the measuring tape but I figure when cutting dados that this will be largely irrelevant. Also the clearance between the blade and the arbour lock is reduced to a double thickness of paper but as far as I can tell there's no actual contact so I think I'll be okay.As for the`dado set itself, the blade fit on the 5/8" arbour is so exact that it's almost (but not quite) a press fit. All blades and chippers mount onto the abour such that the teeth form a horizontal line just as you'd expect. It might be just my imagination but it seems to me that the outer blades are somehow "beefier" than a standard table saw blade... or maybe I've been sniffing the sawdust too much.So I'm at a point that I can fit a 1/2"dado to the table saw which is the most that I was aiming for. There's no way I could put on a full dado stack but I knew that before I purchased the set. I should note that the chart on the disposable packaging only shows dado widths up to 29/32" so being able to do half of that is a reasonable outcome.I'll post an update when I've had an opportunity to try it out properly.Addendum 2:After having used it now, I've found that there are positives and negatives.To start, my plan to use it in 1/2" configuration didn't go as intended. Yes, it does work but only for a short while then the arbour nut loosens and its no longer usable and even worse no longer safe. It appears that any configuration that doesn't include the factory supplied arbour washer is dodgy. Given the thickness of the factory supplied arbour washer, 1/2" isn't achievable. I'd estimate in this configuration that 3/8" is the maximum achievable thickness. I wonder if I were to get a machine shop to clone the factory supplied washer but thinner whether this would work. I'll think about that one.The other disappointment was with the dado itself. I have no previous experience with dado stacks hence I don't have anything to refer back to. It had been my expectation that when using a dado stack that the bottom of the dado would be perfectly flat. In practice this is not the case. What I found was that the blade cut leaves what I'll call "striations"... effectively noticeable grooves in the direction of travel.The teeth on the blade are not all flat topped but alternate between flat and bevelled. So it appears that one or more of the bevelled teeth is higher than the others. When one examines the teeth more closely, it is possible to see where protruding teeth have been ground down. So the only possible conclusion is poor quality control.I'm sure that one could take this to a good engineering workshop and have this corrected. However given that De Walt is a premium brand for which the consumer pays a premium price, quality control on this level simply isn't good enough. It appears that De Walt is satisfied with trading on its past reputation but content to slide into the "also-rans".