With the Milwaukee 4932430179 magnetic bit holder, you drive drywall screws accurately and quickly into plasterboard. The strong integrated magnet firmly secures the bit and screw, giving you full control when working one-handed on partition walls or overhead ceilings. Thanks to the built-in depth stop, you sink every screw to a flush finish without breaking the plasterboard paper or damaging the core. Its universal 1/4" external hex shank fits standard drill drivers and screwdrivers, turning your existing tool into an efficient drywall solution.