Pros: Durability, Ease of Use, Effectiveness, Overall Quality
Read this if you are buying...
If you haven't heard of this, it is a quick pull through sharpener, power by tungsten carbide, it is one of the hardest material in the world. However it is also aggressively remove the material, so remember to stroke the blade after sharpening, since the sharpening method is too wild, it is not recommend to use it on some expensive knife. Should it be used on a 10$ machete buy in store? Definitely yes. Should it be used on a CPM-20CV ZT folding knife? Absolutely no, I would never use it on my premium steel knife. So if you need to put an edge on low quality steel blade and lazy to sharpen manually or not good in sharpening, this is for you.