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I'm pleasantly surprised by these blades. I build and install custom kitchens, and these have blown me away for the price. They are not the best blades I have ever used. They don't cut quite as fast as some or last as long as some others, but in no way are these useless junk. I mostly use them to cut outlets in cabinet backs. I've cut 3/4 plywood and solid maple with them too. Unless I need a specialty blade, these do just fine. For the money they're a no brainer. I got two kitchens out of one blade and it's still useable. They fit my 20v dewalt just fine. They're a little tight on my 18v hitachi but do work on both.
They only last about half as long as what I was buying at the home improvement stores but at less than a quarter of the price. I am a contractor and use them almost every day so it's a huge savings for me. Will definitely buy again.
They work fine I used them for pocket door hardware to cut the metal plating square into mdf. Worked for about 4 of them then had to be replaced used them for 4 sided cuts also was using a battery power tool so you might be able to get a little more use out of them with a corded fine tool .