Review on 🔪 Chef'sChoice 463 Pronto Diamond Hone Manual Knife Sharpener - Best 15 Degree Knives for Fast Sharpening, Recommended by Cook's Illustrated, 2-Stage, Black by Alex May

I bought this because it seemed like a cheap alternative to more expensive electric sharpeners designed for Asian knives with 15-16 degree blades. It came out pretty cheap. Cheap junk. It works by having two sets of offset grinding wheels in two grooves. You place the blade of the knife in the #1 coarse notch, squeeze and pull a few times, apply gentle downward pressure, and then repeat another 5-10 times in the #2 fine notch. I was able to get two of my smaller shun -Sharpen knives and everything seems to have gone well. Then I tried my 7" Shun Santoku and the rough wheel just locked up. It froze and wouldn't move. As a mechanic, I opened up the case to see how it worked and found that the grinding wheels were up two obliquely opposite discs were mounted on the axle which had just snapped in. The fine disc turned quite well but the coarse disc was blocked for no apparent reason and the grinding wheel fell off and was free to rotate on the axle causing the whole rough image emerged page completely unusable.If it had done its job I would have ignored it all and thought it was worth the money.When I opened it up I found it was $2 worth of junk, the was thrown in a plastic box and sold for $35. I'm sending it back and will do what I should have done in the first place - spend the money and buy something solid, functional, and electric fen.