Made in the USA means a lot! It sharpens quickly, whether you need to remove a lot or just a "tune up" on the blade edges. Because it's manufactured flat, it is excellent for planer blades and chisels. The ability to sharpen dry or with only water creates less of a mess than other types of sharpening stones. The no-hassle guarantee is a definite plus, though I would be surprised if you ever needed it.

This is by far one of the most useful tools to have in any shop. The ease of use is such that even a complete novice can sharpen knives like a pro.

It is quick and easy to use and produces a very sharp, clean edge. Requires much less work than standard whetstone. Tested it on knives, chisels and gravers and it produced excellent results.

This product is a great sharpener, it is very versatile and easy to use - a must have for every household!

I was used to using ceramic and steel sharpening kits. I'm impressed with the ease of use with the diamond sharpening system. I used it both wet and dry and it performed great both ways. With just about a dozen strokes I was able to sharpen knives that normally take 5 to 10 minutes apiece. It's also so easy to clean after use. Just rinse it under running water and wipe dry. Great Job!

If I would have known how easy it was to have a sharp knife, i would have bought one of these a long time ago. Highly recommended.

I received this during ice fishing season and used it exclusively to sharpen my fillet knife while cleaning fish. It put an excellent edge on the knife with just a couple of strokes. It has lived in the kitchen ever since and I will probably have to steal it once hunting season starts!

Ability to use without oil was great. Clean up is easy and fast. Puts a good edge on knives, even for a novice sharpener.