The M12 3/8 in. hammer drill/driver is the only tool in its class with an all-metal chuck, one of the reasons professionals turn to Milwaukee for durable equipment. This 12 volt lithium-ion subcompact supplies up to 275 in. lbs. of torque and features a ratcheting chuck to ensure bits stay securely fastened under ever-increasing loads. Choose between two speed settings (0-400 or 0-1500 RPM) and one of 18 clutch positions for optimal torque. The contoured handle enables firm command and control while the responsive variable-speed trigger reacts quickly to user actions. Hammering action delivers up to 22,500 IPM in high speed and up to 6000 IPM in low speed Compatible with M12 lithium-ion batteries and chargers (sold separately) Weighs just 2.3 lbs. LED light illuminates work space Fuel gauge indicates remaining battery life