Warthog V-Sharp A4 Knife Sharpener, Professional Sharpener, Ideal for Home Cooks, Chefs, Fishermen, Hunters, 325 Grit Diamond Rods with Adjustable Angles, Metal Frame Construction, Black

Definitely recommend this for sharpening your knives. A friend got one for his shop and everyone that came in used it to sharpen our knives. It's quick and definitely sharpens. I liked it so much I bought one for home. I bought the next higher stones and not following the instructions broke it and one of the stones. I contacted the company and they sent a free replacement part without question and I did take responsibility for breaking it. Since I broke the stone as well I put the fiber stones on that and ordered another with the coarser stones. Now I don't have to change them. Start with one and just move to the other. Works great. Definitely recommend it and the company.

This thing is cool looking, fun to use, and sharpens knives (even my expensive Japanese, Swiss and German ones) very well. But it is an EXPENSIVE luxury!Unexpected problem: recently I set the angle to 20 degrees for my Misono knives (I've been using it at 25 for my normal kitchen cutlery), and discovered that at 20 degrees or less the knife hits the metal work below messing with the edge. You can avoid that by carefully watching how deep you allow the knife to go while sharpening. So be careful!

Received this as a gift. Works well on most knives. Very easy to use. Does take a while to get a dull knife sharp. Not quite as effective as having them sharpened by a professional, but will keep an edge on already sharp knives.

I would give the sharpener a 5 out of 5 but to buy stones with different grits is too expensive.

I used the product for several months. Consistency is the key and not expecting overnight results. There was a very apparent difference in the lifting of my jaw and my eyebrows. A must try!! Be patient - it truly does work!!!