Review on Grinder Carving Abrasive Polishing Shaping by Joshua Romero

I was hoping for the best but I only got what I think is fit for use. As you can see from the photos these discs are not suitable for use with every angle grinder. I have an old angle grinder from Chicago that I've been using for over 20 years. I also have a variable for grinding and polishing granite. The smallest disc is 2-1/2 inches in diameter and I'm not sure how that works. The nut protrudes quite far from the top. While this blade is designed for narrow and thin cuts, it doesn't look very strong. The curvature seems very even, so I don't think it was used this side up. The washer leaves the nut buried so if it gets stuck I can't get the pipe wrench to unscrew it. So I can't use two out of three. That's why I returned it