M18 18-Volt Lithium-Ion Brushless Cordless Hammer Drill/Impact/ Braking Grinder Combo Kit (3-Tool) with 4-BatteriesThe M18 Brushless Hammer Drill Driver is the Most powerful drill in its class at 725 in. lbs. of torque. The M18 1 4 in. Hex Compact Brushless Impact Driver has the fastest application speed its class and delivers 1,600 in. lbs. of torque. Both tools feature Milwaukee built brushless motors, REDLINK Electronics and REDLITHIUM batteries that provide more efficient power delivery, for fewer trips to the charger. The Milwaukee M18 FUEL 4 1 2 in. to 6 in.