Using these Birzman cable pliers is a breeze. First, grab the cable that needs adjustment firmly with the pliers. Then, use the thumb lock to keep it in place. This way, you can use one hand to hold the cable tight and the other to work on the bolts and nuts. When you're done, release the thumb lock gently. Remember, don't use excessive force as it might damage the pliers or the cable. To keep your cable pliers in good shape, clean them after each use with a dry cloth. Store them in a dry place to prevent rusting. With proper care, these pliers will serve you well for a long time.