Using your Klein D209 - 5C pliers is easy. Just grip the plastic - dipped handles and position the pointed nose where you need to cut or trim on the printed circuit board. The spring - loaded feature will make it open automatically after each cut, saving you time and effort. When using, make sure to hold the pliers firmly to ensure accurate cutting. Since these pliers aren't insulated, avoid using them on live electrical circuits. To keep your pliers in good shape, after each use, wipe them clean with a dry cloth. If they get dirty, you can use a mild detergent and then dry them thoroughly. Store them in a dry place to prevent rusting. With proper use and maintenance, these pliers will serve you well for a long time.