Using this Klein Tools 74007 wire stripper is a breeze. First, figure out the size of the wire you're working with. Then, use the adjustable dial to set the right size. Once set, place the wire into the stripper and squeeze the handles. The tool will strip and cut the wire for you. After each use, the spring - loaded design will open the tool automatically, getting it ready for the next operation. When using the nose cutter in tight areas, be gentle to avoid damaging the wire or the tool. To keep this wire stripper in top shape, clean it regularly. Wipe off any dirt or debris with a dry cloth. Store it in a dry place to prevent rusting. Also, don't force the tool to strip or cut wires that are outside its specified AWG range, as this could damage the tool and affect its performance.