Review on Dart Sharpeners Grinding Stone 4Pcs by Jahan Arias

I feel like they are not of the quality I expected. The insides of each are uneven so you won't be able to get a flat tip if you use them as you should. Also, some of them seem to be rougher than others. The coarser steels wear out very quickly. I actually think I messed up a few points trying to sharpen them with it. One in four works well. Maybe I'm using them wrong or something. Maybe they're just bad quality. They're cheap anyway, so if you're willing to take the risk, you're not risking much anyway.