Review on Abrasive Mounted Grinding Compatible Aluminium by Brett Kolpack

They aren't the same quality as Dremel stones but also they are a lot cheaper and there are plenty of them. I bought these primarily to replace Dremel 932 aluminum oxide whetstones that I use to sharpen lawn mower blades. They don't last that long, but they do. In addition, the photo is deceptive as they are not stored as shown in the photo. Not critical, but still not accurate.