... down. The tungsten carbide blades adjust to sharpen knives, scissors, shears, and cutting tools. A must have for any kitchen. ... down. The tungsten carbide blades adjust to sharpen knives, scissors, shears, and cutting tools. A must have for any kitchen. ?? ... suction cup Slices everything with ease Sharpens serrated knives, kitchen shears, scissors and all blades Get the sharpest edges possible. samurai ...