L it allows for unmatched access in tight spaces. At 3,300 RPM the impact drives screws over 20% faster than competitors. Also included, the M12 FUEL Hex Impact (2553-20), the Fastest Driving Speed, Most Compact with 4- Mode Drive Control Impact Driver in the market. It delivers the power to do a wide variety of applications at 1700 RPMs and 350 in./lbs. of weight it is the best Hammer Drill Driver to use in compact spaces. Included is the M12 FUEL Hammer Drill Driver (2504-20), the Most Capable, Lightest Weight and Most Compact 12-Volt Hammer Drill Driver in the market. The 2598-22 M12 FUEL 2-Tool Combo Kit is the Most Capable and Most Compact 12-Volt Hammer Drill Driver and Impact Driver Combo Kit on the market. View All - Personal Protective Equipment.SHOCKWAVE™ Lineman's Sockets & Adapters.View All - Concrete Drilling and Chiselling.View All - Vacuums & Vacuum Accessories.