General description This Cordless Electric Impact Wrench Rattle Nut Gun combines a powerful impact driver and cordless drill in one versatile tool. With a maximum torque of 420 Nm, it is designed for disassembly, assembly, drilling, and various applications such as car repairs, large construction projects, and heavy equipment maintenance. Technical specifications Shell material: plastic shell Rotary shaft: tungsten steel Lithium battery: 3000mAh (1 charge) Voltage: 21V Weight: 3.41kg No load speed: 0-2300 RPM Speed: 0-3200 RPM Impact frequency: 0-2900 RPM Frequency of influence: 0-4400 Output shaft: 1/2 inch Charging time: 2 hours Usage time: 55 minutes Includes 4 sockets: 14mm, 17mm, 19mm, 22mm Compatibility and accessories Includes 1 Impact Wrench Body 1 User Manual 1 US plug charger 2 Li-ion batteries 4 sockets (14mm, 17mm, 19mm, 22mm) 9 drill bits Installation No specific installation instructions provided. Usage Ideal for removing slightly rusted or overtightened screws and nuts