Using the Klein 32500MAG is easy. First, decide whether you need a screwdriver bit or a nut driver. If you need a bit, just pick one of the 8 available bits and insert it into the integrated shaft. For nut - driving tasks, switch the shaft to one of the 3 nut - driver sizes. When using the tool, hold it by the Cushion - Grip handle for better control and comfort. Remember to keep the tool clean after use. You can use a dry cloth to wipe off any dirt or debris. Store it in a dry place to prevent rust. Also, be careful when handling the rare - earth magnets as they are quite strong. Don't let small metal objects get too close to the magnets to avoid accidental attraction.