Remove dirt and debris from the cutting edge of the metal blade. Use a rag and stiff-bristle brush to loosen and remove any debris prior to starting the sharpening process.
Hold the Smith's Multi-Purpose Tool Sharpener by the Sharp Shield grip. Hold the top of the sharpener against the palm of your hand. Grip the groove around the edge of the sharpener with the tips of your fingers.
Place the flat bottom of the sharpening tool against the cutting edge of the blade. Angle the sharpener to match the beveled edge of the cutting blade.
Begin at one end of the blade. Move the Smith's sharpener along the entire length of the blade in one direction.
Turn the blade over and repeat the process to sharpen the opposite side of the cutting edge. Continue to sharpen both sides of the cutting edge the same number of times until the edge is sharpened.