Using the Klein 63081 replacement cable cutter head is easy. First, make sure your 25 - Inch standard cable cutter (Cat. No. 63041) is clean and in good condition. Then, simply install the replacement head onto the cutter. When you're ready to cut, place the soft cable (up to 1 - 3/8 - Inch in diameter, 500 Cu, and 750 Al) between the hook - jaw blades. Squeeze the cutter to make a clean cut. Remember, this head isn't designed for cutting steel or ACSR, so don't try to use it on those materials. As for maintenance, after each use, wipe the head clean to remove any debris. You can also apply a light coat of oil to the jaws to keep them in good shape and prevent rust. This will help ensure the long - lasting performance of your Klein 63081 cable cutter head.