Review on 🔪 Lansky Super Sapphire Hone S2000: Highly Effective Spare Sharpener for Superior Results by Diane Ferreira

As others have said, be careful. Mine came with a slightly concave stone. It's still usable and while it doesn't give me that nice polished look, there are still very sharp edges. At least I can shave the hair off my arm with the edge it creates. All other stones I have in this set are flat. Maybe I can fix it by sanding it down little by little? - Update 7/1/2018 - I leveled the stone on a cheap Harbor Freight diamond bur from their 3 piece set with plenty of water. After a while I checked it with a small 3 inch square to make sure it was flat. After the initial leveling, I proceeded to water-dampened 2000-grit sandpaper on a small pane of glass. All in all it took about an hour. or something to make the stone back to what it was originally. Polishing the stone is much smoother now because the stone is not concave. - Afterthought - I wonder how difficult it would be to do this with 2" aluminum extrusions and lap tape.