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

This thing is amazing I wanted to go down 1/2 inch in my concrete. this thing made it so easy it works great when you put it flat but if you tip the grinder just a little bit it chews it apart like butter . I'm sure that it'll make the disc wear out faster but if you're only doing a little area it's no big deal. awesome price.