DEWALTDW4702 Diamond Saw Blade

... but is probably great when attached to a saw.I got this blade to cut some cured concrete slag resulting from a pour when the crew seems to have been short some proper wood for the form; they ripped a 2x4 in half, and staked/fastened this in inside corners so that they could screed the wet concrete. (By the time I noticed the slag -- because of the dead grass -- several months had passed.)After the second or third cut in the concrete (not more than 3/4" deep per cut ... each cut was between 5" and 9" in length), the kerf opened up a wee tad. By the fifth or sixth cut, the blade felt out of round, as if it were warped or radically out of balance, and the kerf was twice as wide as my initial cut.Thinking that the bearing of my grinder's shaft was going bad (even though it hadn't seen much use), I feared I'd have to buy a new grinder. When I loosened the blade to try to figure out how bad it was, the real problem was glaringly obvious. The 'diamond knock out' had become dislodged under the (tightly fastened) hold-down plate of my DeWalt right-angle grinder (with 5/8" arbor). While the blade was not loose, per se, when the grinder was on, the blade had been slopping about because the diamond knockout was functioning like a too small key-way in the blade's diamond-shaped opening. The fit between the knockout and the blade's opening was simply too loose to allow a good cut.BTW. The picture of the blade is inaccurate. The blade's diamond knockout is cut through the metal in all but four tack-weld-style spots, and this is easily visible on the blade. To my recall the knockout itself was silver (not yellow, as depicted in the picture). There is no yellow color on either face of the knockout after having used it.As other reviewers have said, the blade cuts like nobody's business, in my case, cured concrete like a warm knife through butter. Five stars for the blade when used with a tool attached via a friction-fit diamond arbor, but no stars when used with an angle-grinder having a 5/8" round arbor, leaves three stars for this blade.

I purchased this blade to use in my skill saw to cut 1.25 inch granite countertop material. (Yes Real Granite) I cut it dry and cut full thinkness all at once. I did not use water because of the mess and possible electrical hazard. Anyhow, WOW it cut that like butter. About 1/4 inch per second maybe a little faster but I did not push it. I don't know much it would cut but is was going strong after 13 feet. Highly recommended for the do it your self-er who just wants to cut a small amount of granite. It does not leave a polished edge but I easily sanded and polished it.

I had a water leak under my concrete patio and needed to cut the concrete to find the cause and repair it. I bought two of these blades and used both. If you think you can put this in your circular saw, set it to max depth and go to town you will be disappointed and you may burn up your saw motor! I set the depth to 1/8" increments and made repeated passes until I cut an outline 5' x 2' 3.5" deep. After that I used a small air-driven hammer to break out the concrete. This method worked great for me. Any thicker and you'll probably want to rent a water-cooled professional concrete saw.

Bought this to use with Skil Model # 3540-01 tile saw, which requires a 5/8 arbor blade. Had to shim the blade since the little washer that comes with the dewalt blade falls out easily, and too much gap in the skill saw mount for the blade. Bought a 5/8 SS washer for the shim. The Dewalt blade is sold for use with either 5/8 or 3/4 inch arbor. Seemed to work ok, but my hope was that I would get less chipping of the tile. The Dewalt blade is actually much worse than the blade that came with the Skil saw. May be more vibration of the Dewalt blade due to mounting issue. Certainly do not recommend the blade for the model Skil saw I have. At this point, not sure what I will do with this blade.

I used this blade on a Makita Hypoid Saw (dry) to cut through reinforced concrete.I had debated whether I should use this blade on my saw or a large abrasive one on a gas-powered saw (which I'd have to rent). This blade ate through the material surprisingly well. It ate through three inches of concrete with absolutely no problem in two passes. There was no overheating and the cuts were straight and sharp.I made over fifty cuts so far with no noticeable loss of function. It's well worth the money since a cheaper blade will last you a fraction of the time.

good product. i have totally abused this blade and it is still going strong. if it fails, you won't hear about it from me.i bought a second blade in 2021 for a different project. buyer be ware, this second blade did not come with the diamond shaped arbor. that's why the price is lower on amazos than the big box stores.

I expanded a bathroom which required breaking out part of an old concrete and rock porch. I drilled a series of holes along my cut line to give me a clean break all the way to the bottom of the porch. I then used this diamond blade on my circular saw to cut a clean line. It was like cutting through butter. I was expecting a little more work but found that this blade made the task simple, easy, and quick.

Cut through concrete like butter!

Works well for both Wet and Dry!