Using these Klein D203 - 8 pliers is straightforward. Just hold them by the plastic - dipped yellow handles, which are comfortable in your hand. You can use the long nose to reach into tight spots and the side - cutting blades to cut wires. When using, make sure not to apply excessive force that could damage the pliers. Also, since they're not insulated, don't use them on live electrical circuits. For maintenance, after each use, wipe them down with a dry cloth to remove any dirt or debris. Periodically, you can apply a little bit of oil to the joint to keep it moving smoothly. Store them in a dry place to prevent rusting.