5 Inch 125mm Concave Curved Blade For Granite & Convex Diamond Tool Turbo concrete travertine sinkwork circle shape cutting contour blade concave curved blade

I needed to cut a circular hole in a granite counter top. I already had a flat diamond blade for my angle grinder but knew it would not cut a circle. A video on you tube suggested using a concave blade. This worked great and allowed me to cut a perfect circle.

I've used more brands of blades than I can even remember. This one gets the job done, but it's not the smoothest cutting blade by any means. If this was a $10 blade it'd be 4 stars, but for nearly $20 it doesn't cut smoothly enough to be more than 3 stars.In short, it works, but I'll try a different blade next time because this one could use some improvements.