This Klein 48036 sharpener comes as a single unit. It's a great tool for sharpening both knives and scissors. The high - grade tungsten carbide inserts are a real game - changer. They can sharpen both sides of the blade simultaneously, getting your blade back to its original sharpness in just three or four light strokes. For scissors, simply lay the sharpener on its side and draw the scissors blade through the slot a few times. Safety is also considered, with a built - in finger guard to protect your hand. It's super lightweight at 1.6 oz (45 g) and has a compact size (4' (10.2 cm) in length, 0.75' (1.9 cm) in height, and 2.25' (5.7 cm) in width), making it easy to carry around and store. You can use it on various types of blades, such as electrician's scissors, pocket knives, retractable - blade utility knives, razor blade knives, and serrated knives.

Using this sharpener is a breeze. For knives, just hold the sharpener and lightly draw it across the blade. Usually, three or four strokes are enough to restore the edge. When sharpening scissors, lay the sharpener flat on its side and draw the scissors blade through the slot quickly a few times. As for safety, always keep your fingers behind the built - in finger guard to avoid any cuts. When it comes to maintenance, keep the sharpener clean after each use. You can use a dry cloth to wipe off any debris. Store it in a dry place to prevent rusting. With proper use and care, this sharpener will serve you well for a long time.