To use these Greenlee cutter blades, first make sure your CCX tool is turned off. Insert the blade pair into the designated slots on the tool. When you're ready, turn on the tool and start cutting your ACSR or guy strand cable. Be careful not to force the tool too hard as it may damage the blades. After each use, clean the blades with a dry cloth to remove any debris. Store the blades in a dry place to prevent rusting. Regularly check the blades for any signs of wear and tear, and replace them if needed for the best cutting performance.