M18 FUEL 18-Volt Lithium-Ion Brushless Cordless Hammer Drill Driver/Impact Driver/Impact Wrench Kit with 4-BatteriesThe 1 2 in. Hammer Drill (2804 20) delivers Up to 60% More Power, is Up To 1. 5 Shorter and is Up To 2X Faster Under Heavy Load. At 1,200 in. lbs. of torque and 6. 9 in. L it has the power for demanding applications and allows access into tight spaces. The 1 4 in. Hex Impact Driver (2853 20) is the Fastest, Most Compact and Most Powerful tool in its class. At 2,000 in. lbs. of torque and 4. 59 in. it increases user productivity for demanding fasteners