... vertically even upside down. The tungsten carbide blades adjust to sharpen knives, scissors, shears, and cutting tools. A must have ... vertically even upside down. The tungsten carbide blades adjust to sharpen knives, scissors, shears, and cutting tools. A must have ... Slice, dice and filet fish, apples, tomatoes, onions, peppers, bread and so much more! Features: Tungsten Carbide steel sharpening blades ...