Using your Makita A - 99459 ImpactX Magnetic Nut Drivers is a breeze. First, choose the appropriate driver from the 10 - piece pack. Attach it to your high - torque impact driver or driver - drill. The magnetic feature will help you easily pick up hex fasteners. When driving, make sure the flat edges at the hex opening fully contact the flanged hex - head screws for a secure fit. As for the lobular design, it'll prevent the hex fasteners from rounding over time. When you're done using the drivers, clean them with a dry cloth to remove any debris. Store them in a dry place to avoid rust. Since they have a manganese phosphate surface for corrosion resistance, they'll last longer if you take proper care. Just remember, these drivers are built for high - torque applications, so use them with the right tools and don't overload them with too much force. That way, you'll get the most out of your Makita A - 99459 drivers.