2804-20 Hammer Drill - Delivers up to 1200 in-lbs of torqueREDLITHIUM XC 5.0 Ah Battery Packs - Deliver more work per charge and more work over the life of the pack than competitors2804-20 hammer drill - POWERSTATE brushless motor delivers up to 60% more power, is the most compact in its class at 6.9 in. L, and provides up to 2X faster speed under heavy load2853-20 Impact Driver - Most Compact Impact Driver at 4.59 in. in length providing more access in tight space2853-20 impact driver delivers up to 25% more torque with up to 2,000 in./lbs. to complete more demanding applications