... easy to use. Just lock it down, slide the blade across to sharpen. The vacuum seal on Samurai Pro let ... to almost any surface, horizontally, vertically even upside down. The tungsten carbide blades adjust to sharpen knives, scissors, shears, and cutting ... everything with ease Sharpens serrated knives, kitchen shears, scissors and all blades Get the sharpest edges possible. samurai pro knife sharpener ...