The M18 1/4 in. Hex Brushless Impact Driver is the Most Compact Impact Driver in its class and delivers Over 50% more Run-Time than Impact Drivers with brushed motors. The Milwaukee built brushless motor, REDLINK Electronics and REDLITHIUM batteries provides more efficient power delivery, for fewer trips to the charger. At only 5-3/8 in. long and 3.1 lbs. (with battery), this impact driver provides excellent control and balance in a compact size, perfect for work overhead or in tight spaces. Kit includes M18 1/4 in. hex brushless impact driver, two M18 REDLITHIUM 2.0 compact batteries, M18-M12 multi-voltage charger, and carrying case