Chef'sChoice Electric Knife Sharpeners Diamond Hone with 100-Percent Diamond Abrasives and Precision Angle Guides with XV Technology for 15-Degree Straight-Edge and Serrated Knives, 2-Stage, Black

Bought this sharpener for my new Shun knives (Japanese, 15 degree edge). Used it to put a 15 degree edges on my "20 degree edge Henckels" set also. It takes some effort to convert a 20 degree edge to a 15 degree edge.To convert, you're going to have to grind away more of the edge than merely sharpening. (Doesn't actually grind the sharpest part of the edge, but rather grinds down some of the metal "above" the edge so that it conforms to the 15 degree template.) There are instructions for this included with the sharpener, but here's a tip on how to make that conversion a bit easier.You're likely to have to pull the blade through the sharpening side 25-30 times on each side to "reshape" the edge. Of course you can alternate left-right, left-right, 30 times. After doing that on my first couple of blades, I modified the procedure a bit.1. Grind only one side of the blade maybe 15 times. Check for a "burr edge" as described in the instructions. 15 times likely not enough to form the burr, so grind 5-10 more times. KEEP COUNT OF THE TOTAL NUMBER OF PASSES. Once you feel the burr, grind the other side of the blade. The burr may disappear after only a pull or two, but the 2nd side of the blade won't be properly shaped yet.2. Grind the 2nd side of the blade the same number of pulls you ground on the 1st side. That will make the edge more-or-less perfectly symmetrical.3. Then make 2-3 passes, alternating left-right just to be sure it's even on both sides.4. Then make several passes on the "polishing" side of the sharpener to finish.My Henckels Chef's knife took the greatest number of passes through the sharpener because it's the thickest blade... more needed to be ground down above the cutting edge, but worth the effort.

Bought this on America's Test Kitchens recommendation. It works super well and is really easy. Knives are sharpened beautifully

It’s ok

The Chefs Choice 315 met my expectations. I used it on a Henckels Santoku knive, a Caphalon paring knife, as well as a serrated Henckels, and a Henckels bread knife. Awesome results. My Santoku was ready for the grave and I thought it couldn't be saved. It was battered, the edges looked bumpy, and it wasn't cutting well. After sharpening with the 315, it's like a new knife. It cuts tomatoes with ease, even softer tomatoes. Worth the price, easy to use.

Far better edge than the 21° version that I've had for years. If you just take a little time this will produce incredible results without any harm to the blade. No guessing as to edge degree. You just pull the knife through the guides, no need for anything but light pressure if any. Pull through it about an inch per sec. Read the instructions and just do it. It's easier and easier as you get used to it. You'll be showing off you edges in no time.

The media could not be loaded. Maintaining sharpness becomes very easy with this sharpener, if used correctly. When you introduce your dull knife to this easy to use sharpener you may need a few runs to adjust to this machines angle, however once achieved you can maintain sharpness with just a few runs. We have been using this sharpenerWe have been using this sharpener for over 6 months and thus far we have no complaints.Pros:- plug and play, no setup required- small- easy to use & maintainCons- not suitable for knives 14” + in length- not suitable for knives 5mm + in upper blade thicknessWe can highly recommend this device to anyone requiring easy knife maintenance.

This product does a very poor job of sharpening knives. My manual whetstone does a much better job. I was out of town when the product arrived and returned home in December. It was my intention to return the product but the return time had expired. I do not recommend this product to anyone. It's a wast of your money.

Easy to use , he lov