Product details:

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, relink electronics, and REDLITHIUM batteries provide 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 & balance in a compact size, perfect for work overhead or in tight spaces. The M18 1/4 In. hex brushless impact driver delivers up to 1500 in-lbs. Of torque and 0-2, 800 RPM for a wide range of fastening applications.