DEWALT-built high power, high efficiency brushless motor of DEWALT 20V hammer drill delivers up to 75% more runtime vs. 18V NiCad brushed motorsThe cordless hammer drill features heavy-duty 1/2-inch ratcheting nitro-carburized metal chuck with carbide inserts for superior bit gripping strength3-Mode LED provides lighting in dark or confined spaces up to 20X brighter than previous modelLED Spotlight Mode features 20 minute shutoff function allowing for extended work time in dark or confined spaces