2007 Automatic Gasoline mileage: 300 KM or more YOVLET brand cordless impact wrench. This tool is primarily used for loosening and tightening nuts and bolts that require high torque, such as car tire nuts. Key features of this device: Brushless Motor: Features higher efficiency and a longer lifespan, as it does not have consumable brushes. High Torque: Provides significant power to handle stuck nuts, often measured in Newton-meters (Nm). Two Lithium-ion Batteries: Operates wirelessly with rechargeable batteries, making it easy to use anywhere without needing a power outlet.