Using these Klein Klaw Pump Pliers is easy. Just open the pliers by squeezing the handles, place the jaws around the object you want to grip, and then close the handles. They're great for all sorts of general - purpose jobs. When using them, make sure to apply even pressure to get the best grip. Avoid using excessive force that could damage the pliers or the object. For maintenance, after each use, wipe them clean with a dry cloth to remove dirt and debris. You can also apply a light coat of oil to the moving parts to keep them working smoothly. Store them in a dry place to prevent rusting. With proper care, these pliers will serve you well for a long time.