This one will do 5” wheels, and has covered everything I’ve needed so far. We did have a parking lot job once where we had to modify the handicap ramps, which were concrete. Boss man went and got a big 7” corded with a 7” diamond cup wheel for that one. That thing would wear you out lol
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I had to cut through 1/2" steel sandwiched with 1/2x cast aluminum. It was a mess, took about 20 straight hours.