Features: 1Prime Material: This lithium impact wrench is made of premium plastic and metal material, long life, durable and not easy to damage. 2Work Light and Battery Indicator: With LED work light to illuminate dark spaces while you work. With battery indicator, always keep track of the battery status. 3Stepless Speed Control and One Key Switching: With stepless speed control, it is more convenient to adjust to the speed you want. One key to switch forward and reverse, convenient and quick. 4Comfort Grip: This impact wrench comes with an ergonomic comfort grip that provides perfect balance and tool control. 5Good Heat Dissipation: Impact wrenches have large ventilation slots for heat sinks, which dissipate heat quickly and do not heat up in long time work. Specification: Item Type: Impact Wrench Weight: 1358g / 47.9oz Product Material: Plastic, MetalTorque: Maximum 320 NmNo Load Speed: 0-2000rpmBattery: 1 x Li ion battery, 18650 (shipped without battery) Package List: 1 x Lithium Wrench1 x Instruction Manual Note: This product is not shipped with a lithium battery, you need to buy your own 18650 lithium battery.