The M18 FUEL™ 3-tool Combo kit includes the M18™ FUEL™ 1/2 in. hammer drill (2804-20), M18™ FUEL™ 1/4 in. hex impact driver (2853-20) and M18™ FUEL™ SAWZALL® Reciprocating Saw (2720-20). M18™ FUEL™ features the most advanced cordless technology in the industry; a POWERSTATE™ brushless motor, REDLINK Plus™ intelligence and REDLITHIUM™ battery technology, resulting in longer motor life, longer run time and more power. Features: 2804-20: POWERSTATE™ brushless motor delivers up to 60% more power, is the most compact in its class at 6.9 in. in length, and provides up to 2X faster speed under heavy load; 2853-20: POWERSTATE™ brushless motor delivers up to 30% faster driving speeds and up to 2000in-lbs of torque while being the most compact impact driver at 4.59 in. in length; 2720-20: POWERSTATE™ brushless motor makes it the fastest cutting 18-Volt reciprocating saw in the market and provides cutting power at the same level as some corded saws; REDLINK Plus™ intelligence: ensures optimal performance and provides overload protection to prevent damage to the tool and battery during heavy applications while still maintaining compatibility across the entire M18™ system; 2780-20: POWERSTATE™ brushless motor delivers maximum sustained power to complete the toughest grinding, surface prep and cutting applications; 2735-20: M18 cordless LED work light has more than 600 times the life of conventional incandescent bulbs and runs up to 4 times as long; REDLITHIUM™ XC5.0 Battery pack: delivers more work per charge and more work over the life of the pack than competitors; Compatible with all M18 batteries and tools