Using this nut driver set is easy. First, select the appropriate nut driver for the fastener you're working with. The magnetic tip will hold the fastener in place, so you can position it on the nut or bolt without worrying about it falling off. Then, turn the driver with the Cushion - Grip handle to tighten or loosen the fastener. When using the drivers, make sure to apply even pressure to avoid stripping the fastener. As for maintenance, keep the drivers clean after each use. You can wipe them down with a dry cloth. Since the shafts are chrome - plated, avoid using abrasive cleaners that could damage the plating. Store the set in a dry place to prevent rust and corrosion. This will keep your nut driver set in good condition for a long time.