This 18-Volt LXT Lithium-Ion 9-Piece Combo Kit from Makita includes a 1/2-Inch Hammer Driver-Drill, 6-1/2-Inch Circular Saw, Recipro Saw, LXT Impact Driver, 1/2-Inch Impact Wrench, 7/8-Inch SDS-Plus Rotary Hammer, 4-1/2 Inch Cut-Off/Angle Grinder, Rechargeable Flashlight and a Job Site Radio. These tools employ Lithium-Ion Technology, an optimum re-charging system that produces a greater total battery lifetime with 2.5x more cycles. Lithium-Ion batteries also provide longer tool run time with 5x lower self-discharge rate. The 15-Minute Rapid Optimum Charger optimizes battery life by actively controlling current, voltage and temperature. There is a 3-year warranty on the tools and 1-year warranty on the batteries and charger.