Our M18 FUEL 2-Tool Combo Kit with ONE-KEY has the highest performing Hammer Drill and Impact Driver in the industry with the added control of ONE-KEY technology. The power tool kit includes our M18 FUEL 1/2in Hammer Drill/Driver with ONE-KEY (2806-20). The cordless drill delivers Up To 60percent More Power, is Up To 1.5in Shorter Length and delivers Up To 2X Faster Speed Under Heavy Load. At 1,200 in-lbs of torque and only 6.9in in length, the hammer drill has the power for demanding applications and the ability to access tight spaces. The hammer drill's Anti-Kickback technology increases your control in bind-up situations and reduces unwanted shut-downs, with the added benefit of controlling sensitivity preferences and ability to turn on and off. Also included is our M18 FUEL ¼in Impact Driver with ONE-KEY (2857-20). The hex impact driver 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 percent Faster Driving Speed at only 4.59in in length, with Up to 25 percent More Power. Self-tapping screw mode provides faster installation time, shutting the hex driver down as soon as the fastener is seated to reduce damage to fasteners and materials. The M18 REDLITHIUM XC5.0 Battery Packs deliver more work per charge and more work over the pack's life than competitors. Both tools are ONE-KEY compatible, allowing you to Customize, Track and Manage your power tools for increased productivity. If your tool is ever lost or stolen, its tracking functionality can lock it out to protect your investment.