WORX WX255.3 SD Slide Driver 4V cordless Screwdriver Flexible ShaftThere's always a loose screw somewhere around the house, and your screwdriver never seems to fit until now. The WORX SD stores all the bits you need directly in the tool, so the bits never get lost and there's no wasted time fumbling around trying to find the right bit. Plus, the 4V MaxLithium battery stays charged for up to 1 year, so your WORX SD is always ready. Nothing is more irritating than starting a project only to find the battery is dead.