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 provide more efficient power delivery, for fewer trips to the charger. At only 5-3/8 in long and 3.1 lb (with battery), this impact driver provides excellent control and balance in a compact size, ideal for work overhead or in tight spaces. The M18 1/4 in hex brushless impact driver delivers up to 1500 in-lb of torque and 0 to 2800 rpm for a wide range of fastening applications.