Review on Neiko Premium Zirconia Alumina Conical by Kyle Ahmed

Well, I've been using big boxes of drop wheels for decades, ranging from $4 to $9 each, and they always seemed to wear out really quickly. So when I bought 10 packs of these 60 grains for $16, I figured that even if they lasted half as long, they were still better value. Imagine my surprise when these suction cups last at least twice as long as the ones I've used from DeWalt and cost almost 25% of their cost. I will definitely buy more of these when they wear out. For context: I machine/weld/do quite a bit and buy some of my metal from a local scrap yard, so needless to say it might be rusty to begin with. I use them on a DeWalt 4 1/2" 20V angle grinder.