The Grainger 16T585 is a Milwaukee M18 FUEL 18-Volt Lithium-Ion Brushless Cordless 1/2 in. Hammer Drill/Driver Kit with a 5.0 Ah Battery. It features a POWERSTATE brushless motor for efficiency, runtime, and power. The REDLINK PLUS system protects against overload, over-discharge, and overheating. The kit includes the M18 FUEL hammer drill/driver, a REDLITHIUM XC5.0 battery, an M18/M12 charger, and a carrying bag. It has a 1/2 in. ratcheting chuck and max torque of 1200 in-lbs. The drill measures 7.7 in. and weighs 5.1 lbs. with the battery.