Review on 7" Diamond Grinding Wheels For Concrete Or Masonry, 24 Turbo Segments, 30/40 Grit, Medium Bond, 5/8"-11 Arbor by Brian Henley

I used this to remove some heavy primer/paint layers from a concrete floor in my basement before redoing the floor. I found this turbo-style wheel worked much better than the brand name concentric-circle layout wheel I already had. The circle wheel surfaces seemed to get gummed up by the paint being removed while this one worked like a charm. Even though its a smaller wheel (to match my grinder) I never felt like the job was a grind (nyuk nyuk) and I ran through the whole job quickly. The wheel did show a fair amount of wear at the edges when I was done (I probably wasn't holding it level all the time), but for the price I'm OK with that.