M18 Lithium-Ion technology (compact battery). 1/2" Drill Driver delivers 400 in./lbs. of torque. 1/4" Quick change impact driver delivers 1,400 in./lbs. of torque. Built in LED lights. On-board battery fuel gauges displays remaining run-time Kit includes (2) 18 Volt Lithium Ion compact battery packs, 30 minute charger, and a carrying case. Drill driver is only 4 lbs. and 7-3/4" long. 1/4" hex compact impact wrench has the Milwaukee 4 pole frameless motor.