The industrys first subcompact hammer drill/driver delivers best-in-class power, speed and durability. For contractors, maintenance technicians, remodelers or anyone whos seeking portability and performance, the compact and lightweight M12 cordless hammer drill/driver gets the job done. It delivers best-in-class 275 in-lbs of torque and 0-400/0 to 1,500 RPM with the REDLITHIUM 12 Volt battery (sold separately).the all-metal single-sleeve ratcheting chuck offers superior bit grip, so you wont have to stop for bit re tightening or lost bits. An inboard gauge and built-in LED light offer convenience and minimize interruptions, even during prolonged use. The REDLITHIUM battery pack delivers more work per charge and more work over pack life than the competitors.