The SUNEX Tools 1/2" Drive Premium Air Impact Wrench, No. SX231, features a powerful twin hammer which produces 900 ft-lbs of torque with high impact power and reduced wear. The Reverse Bias Technology increases reverse torque, ensuring efficient lug removal for reliable performance. Its ultralight weight allows users to work without strain, making it ideal for prolonged tasks. Fits commonly used sockets for various automotive tasks, including spindle nut applications. Free RPM speed of 8,000.