The M18™ 1/4” 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 provide more efficient power delivery, for fewer trips to the charger.At only 5-3/8” 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™ ¼” Hex Brushless Impact Driver delivers up to 1500 in-lbs. of torque and 0-2,800 RPM for a wide range of fastening applications.