We tested five top-rated knife sharpeners to see how they compare with ease of use, sharpening ability and value. One stood ...

The Presto 08810 Professional EverSharp Knife Sharpener is a “three-stage sharpening system” that can sharpen alloy steel, carbon steel or stainless steel knives, including kitchen knives and ...

Boasting 4.5 out of 5 stars on Amazon and 17,292 five-star ratings, it’s also rated as “Amazon’s choice” for hunting knife ...

It primarily works as a knife sharpener, either for pocket knives or larger chef-style options, but has other functions as well. It includes a Tungsten carbide blade (to sharpen dull, damaged knives), ...

Dielectric antennas with moderate gain are important in short-range terahertz communication applications. However, achieving moderate gain while maintaining a small antenna footprint is challenging.