Review on Mestool Zirconia Abrasive Grinding Sanding by Michael Colley

After using a 40 grit Diablo flap disc on my angle grinder on a teak table for several hours, it has become worn and runs slowly. Decided to order some CDs to save money. They were cheap, so for a little over two Diablo discs I bought twenty-two of them. After fifteen minutes and a worn disc, I see I made a mistake. Two Diablo discs last longer than twenty-two of them. The rims arrived as promised, hence one star. They fit my angle grinder exactly, so it's different. Very disappointed with how quickly they lose the abrasive and find the glue holding the abrasive to the petals to be the weak point. I'll replace them with better Home Depot discs... and I don't even like Home Depot. Changing discs frequently is inconvenient.