Review on Diablo DCD050060H50G 60 Grit Universal Orbital by Maurice Rivera

I had a huge sanding job on my patio. The bottom and top were over 1200 sf. I tried the floor grinder in HD. Ok with wooden floor inside but was very uneven on the outside deck. I chose a 6 amp DeWalt disc mill. I have an orbital Dewalt, which was a waste of time. Which sandpaper for this huge job? I've tried many. The blue Norton 3X was the best but very expensive as I could only buy it locally at $16 for 10 discs. Diablo was comparable to Norton almost to the point where I couldn't tell the difference. Each got about 10 minutes of use sanding my 60 grit deck. What was surprising was that I paid $18 for 50 Diablo discs instead of $16 for 10 Norton 3X discs. The 1200 SF job consumed 100 Diablos. So the cost was $36. Norton would have lost $160 for me. .