Milwaukee Drill/Driver Kit, 18 V Battery, M18 Red Lithium Battery, 1/2 in Chuck. The M18™ 1/2 in compact brushless drill/driver is the most compact 1 to 8 V drill on the market and delivers Over 50% more runtime than drills 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 6-7/8 in long and 3.7 lb (with battery), this drill provides excellent control and balance in a compact size, ideal for work overhead or in tight spaces. This compact drill delivers 500 in-lb of torque and 0-450/0-1800 rpm, for a wide range of drilling and fastening applications. An all metal gear case and 1/2 in metal chuck provide maximum durability.