DeWalt DCF620P2K 18V Brushless Collated Drywall Screwdriver with 2x 5.0Ah Batteries The DeWalt DCF620P2K 18V Brushless Collated Drywall Screw Gun with 2 x 5Ah batteries features a powerful head-mounted brushless motor that provides ample power to complete all drywall sanding applications. The variable speed dial allows for easy speed changes to suit all sanding applications. The ventilated sanding backing pad delivers best-in-class dust extraction when combined with mesh sanding sheets. The telescopic handle offers speedy sander length changes from 1.2 - 1.6M without the need to turn off the sander. The AirLock connector allows for universal fitment to any DeWalt dust extractor. The side-positioned head-mounted dust extraction hose provides a clear line of sight to the work area and.