The M18 FUEL™ 2-Tool Combo Kit with ONE-KEY™ is the highest performing Hammer Drill and Impact Driver in the industry with the added control of ONE-KEY™. The kit includes the M18 FUEL™ 1/2" Hammer Drill/Driver w/ ONE-KEY™ (2806-20) that delivers Up To 60% More Power, Up To 1.5" Shorter Length and Up To 2X Faster Speed Under Heavy Load. At 1,200 in-lbs of torque and only 6.9" in length, it has the power for demanding applications and ability to access tight spaces. The Hammer Drill's Anti-Kickback technology increases control in bind-up situations and reduces unwanted shut-downs, with the added benefit of controlling sensitivity preferences. Also included is the M18 FUEL™ ¼” Impact Driver w/ ONE-KEY™ (2857-20). It is the Fastest, Most Compact, and Most Powerful Impact Driver in its class. With up to 2,000in-lbs of torque, it delivers Up To 30% Faster Driving Speed at only 4.59" in length, with Up to 25% More Power. The M18 REDLITHIUM™ Battery Packs deliver more work per charge and more work over the life of the packs than competitors. Both tools are ONE-KEY™ compatible, allowing users to Customize, Track and Manage their tool for increased productivity. Using the tool's tracking functionality, if ever lost or stolen, lock it out to protect your investment.