Using the Klein K12035 wire stripper is easy. First, select the appropriate stripping hole for the wire size you're working with. Then insert the wire into the hole and gently squeeze the pliers to strip the insulation. When dealing with screws, use the screw shearing holes. Make sure to keep the wire stripper clean after each use. You can wipe it with a dry cloth. Store it in a dry place to prevent rusting. Don't use it on wires that are too thick for its capacity, as this may damage the tool. Also, be careful when handling the sharp edges of the shear - cutting knives to avoid cuts.