Using your Klein 63124 bolt cutter is easy. First, select the metal you want to cut. Place the metal between the center - cut jaws at the appropriate position for the cut. For 90 - degree cuts, use the flat - ended grips on the handle. Squeeze the handles firmly to make the cut. Remember, the cutting capacity for soft and medium materials is up to Brinell 300 and Rockwell C31, and for hard materials, it's up to Brinell 400 and Rockwell C42. Don't try to cut materials beyond these capacities as it may damage the cutter. When not in use, store it in a dry place. If the blades get dull, you can replace them with the 63924 replacement blade. Regularly check the lockplate reinforcement to ensure the jaw bolts are secure and the jaws are in correct alignment.