DeWALT 14-Inch Metal Cutting Blade

I have a small fab shop and we use this daily for cutting everything from 1" square steel tube .100 wall all the way up to 5"x 3" .250 wall steel tube, 1/8",3/16",1/4"and 3/8" x up to 4" angle as well as aluminum extrusions 1",2",3" square aluminum tube (a little wd40 on the blade while cutting aluminum helps keep the teeth clear) and I usually get a couple of months out of the blade before it needs sharpening, I've gotten the same blade sharpened a few times before it needed retirement, usually due to lost teeth. I have four of these blades and cycle them, when they get dull I switch it out and send it out for sharpening. I haven't kept count of how many cuts we're getting but I would guess at least a thousand as long as the material is clamped properly and supported when cutting long pieces, if the work piece moves while you're cutting it will remove teeth in a hurry ruining the blade. I've got an abrasive blade chop saw and it hasn't been used in years other than to cut hardened shaft like thomson or superior shaft since I bought the Dewalt dw872 that uses this blade, it makes cuts cleaner, faster and more square than the abrasive blade ever could, without all the dust! Also a word of caution you can't use this blade on an abrasive blade machine because the wheel speed is too high, and don't use it on hardened shaft or you'll get a very short life out if it speaking from expensive experience.