Highest torque available within its class. Milwaukee?s high performance 4 pole motor delivers maximum power whilst (optimising) maximising the power to weight ratio. Impact mechanism increases driving speed to a category leading 2200 RPM. Delivers 3200 impacts per minute for increased productivity. Milwaukee patented electronics in both power tool and battery pack deliver revolutionary durability. 3.0 AH Li-Ion batteries deliver high runtime and increased durability. Fuel gauge displays remaining battery charge state.