... down. The tungsten carbide blades adjust to sharpen knives, scissors, shears, and cutting tools. A must have for any kitchen. ... upside down. The tungsten carbide blades adjust to sharpen knives, scissors, shears, and cutting tools. A must have for any kitchen. ... tomatoes, onions, peppers, bread and so much more! Features: Tungsten Carbide steel sharpening blades Suction cup on base holds Samurai Pro ...