NOTICE: Use only screw strips that are suitable to this magazine. Only insert screw strips when the screwdriver power is off and the trigger is locked. Proper use of collated strips will reduce the risk of injury, reduce jams and prevents screws from damaging work piece. For best performance use new, undamaged strips free of debris. 1. Take a collated strip, holding the plastic portion, and feed from the bottom of the screw guide and into the bottom of the advancing mechanism. 2. Continue feeding the strip until the first screw is one slot below the driver bit.