IRWINDado Blade Set, Stacked, 8-Inch (1811865)

I used this blade with a corded SKIL 5280 7-1/4-Inch Circular Saw to cut backer board for a shower reno in my house. I cut mostly half inch and a few sheets of quarter inch Durock, total of about 12 sheets, but including a bunch of small pieces for a shower niche and a bench.I was on the fence about buying this because it's expensive (almost as much as the saw!) and because I had previously been able to do an adequate (but slow and painful) job cutting Durock using a razor knife (and a whole bunch of blades) on another job around the house. But I was looking for something that was (a) faster, (b) cut a cleaner edge and (c) didn't wear me out so much to use - so I took the leap.I'd say this blade fit all 3 counts.(a) It literally chews through Durock. Occasionally it'd hit a hard spot and would take a second to catch, but by and large the Durock was toast. It was really fast, it probably cut through a full 5' in maybe 10-15 seconds. This is several times faster than I can go with a razor knife (scoring, then cracking, then cutting again ...) - especially as those razor knife blades get dulled up after seems like just a couple cuts.(b) The edges were really clean. I clamped a guide board along the Durock to keep the saw straight, and it had absolutely no problem keeping straight. No waving edges to have to go back later and clean up in place. If you were really in a hurry, you could probably use it freehand, since it didn't struggle at all cutting the material. Overall those really clean edges made fitting them together much easier and greatly reduced the amount of time I had to spend scraping little protuberances to make all the sheets fit together.(c) I'm 39 - which I consider not real old, but also not real young, and anything I can do at this point to save my arm and shoulder some stress is welcome. This thing just took a lot of the effort out of the job. Hand cutting, especially with a dulled up razor, is something I'm happy to minimize. It just made it much less taxing of a job.The one blade lasted the entire job and I couldn't tell any difference in cutting from beginning to end. I'm assuming I'll be able to use it on my next project.There were a couple downsides:- It did make a lot of dust and blew bits of board off at high speed, and it was loud as all get-out. As others have said - wearing a mask, goggles and ear protection is a must. I did all the cutting outside the garage, I'm not sure I'd use it indoors unless it was really well ventilated.- It's expensiveOverall, I would definitely buy again despite my angst at the price point.

excellent

Cuts very well - pleased with the results.

I used these to cut baseboard and door casing. Once I moved to the laminate flooring the blade burned thru the cuts Smoking! Won't last long on anything dense. It's a cheap blade good for less than 1000 sq ft trim. That's all I needed!

These dados are dead flat and square. I've made two box jointing jigs with absolutely no issues due to the blades (my own skill is still questionable). The included table showing which combination of blades, chippers, and shims is invaluable. Ane the shipping case is PERFECT for storing and protecting the blades.

Great price on a functional blade. It's nice to have at least one high tooth count blade for certain materials, and/or where you want a very clean cut. Not carbide-tipped, so don't expect long life.

Didn’t last that long started to burn

Installed it into my 10 inch table saw and raised it 1/8 inch above the top of the polycarbonate sheet that I was cutting and performed flawless. Cuts clean lines effortlessly. I do not think that it's made to cut plywood since some people commented to want to do that, the teeth are too fine for sawing wood.

I had a lot of melamine particle board shelving to cut for making cupboard doors. I made three slow passes of the saw and increased the depth of the blade each time to cut all the way through the board. The blade did well with this technique, and I installed a new one after cutting about 32 lineal feet this way. I could tell the blade was clogging and taking a bit more effort to push along. Its not a super expensive carbide tipped blade but for the money and results, it performed well overall. For a big job, buy two.

Blade lasts. It is a good value.

Ainda não usei, mas a Marca Irwim fala por si só

Arrived quickly. Put it to work and cuts through like butter. Blade cuts consistently even after several cuts. Not much dust.

I'm installing vinyl board and batten sidings and this blade cuts the vinyl sidings really well. Nice clean cuts. I have this installed on a small sliding mitre saw I picked up from Lowes and it cuts a piece of board and batten horizontally without issue.