well so far i am impressed, this is what I was looking for, since sawzall is kind of a pain and is inaccurate, grinding wheel is the same plus LOTS of sparks, and my band saw is not that strong. I happen to have a GMC made 10" chop saw that's rpm rating is 200rpm LESS than the max rated on this blade (5200rpm blade rating with saw at 5000 max speed), so no silly router controller that will kill torque. This is also a 12amp saw.5 cuts in 3/16 flat bar with no issue..... with mad chips everywhere lol. Will see if a vacuum will help that, but I definitely recommend a face shield! Safety squints weren't up to the task.Now as far as longevity. I see a good number of reviews that state 5 cuts to 75 cuts etc. Unfortunately I can't use most of that data, becasue most do not state what saw, speed, and feed rate used. Not that i can measure that myself to offer out, but like I said, under rated blade speed, slow slow SLOW feed rate. But I honestly do not think ANY steel cutting blade like this is gonna last that long anyway, we're cutting SOLID steel!I'll try and update in a while after some more use.Update:Ok I think I smoked it. Been cleanly cutting through plate steel up to 1/8" fairly well, then cutting 3" wide 16 gauge it started heating up the steel and not working through the cut. Now it won;t cut very well at all. now I can't guarantee that I didn't feed to fast or something else, but even if I did, wow touchy touchy. $40 bucks shot, but I am seriously considering getting another and juts being more conscious of use. It IS cheap. I figure I got about 30 cuts with it.