Kota Japan 12 in. Diamond/Ceramic Dual-use Professional Knife Sharpener Rod | Kitchen, Home or Hunting | Master Chef, Hunter or Home Gourmet Steel Blade Sharpening Rod or Stick.

This device works wonders. I used it an old stainless steel serrated kitchen knife. It’s now very sharp.

Easily sharpened my Santoku and four other knives easily. Comfortable in the hand.

It actually works well for getting an edge back on a dull knife. Be very careful with your sharpening angle, though. This thing takes off more material than one might think. Great for garden shears, etc as well. I've found a few laps or more with a ceramic rod after really finishes off the blade beautifully. It's definitely not the only sharpener you need, but rather just one tool in the box.

I've purchase a variety of products over the years to try and sharpen knives. Most don't work, or damage the knife, or maybe helped a little but that's it. This is the first device that actually worked well.Note that it doesn't really come with instructions, but if you look on YouTube there are vids that show you how to use it correctly, and I recommend watching a video or two. This and a piece of leather as a strop and you should be good to go.

I finish sharpening with a fine, ceramic rod

This is a well made sharpener that may be avaialbe at a lower price from an unbranded retailer.

Easy quick sharpener

First off, it's bigger than I thought, in a good way though. Very easy to control and great for large kitchen knives. The diamond on the rod is more aggressive than a honing rod. If you have a dull knife, it doesn't take long at all for this thing to make it sharp as can be! This took has a ceramic honing spot on the guard, you can see where I tried it out. It is small and I'm liable to still order a ceramic honing rod just because I'm extremely particular about my knives' edges. I was very impressed with how quickly and how sharp it made the knife I tried it with. It feels comfortable in the hand too, lightweight but doesn't feel like junk. Instructions say to put the rubber tip on a table top or something to add stability while sharpening. I love it.