This Ingersoll Rand air impact wrench combines compact size and high performance, making it ideal for everything from spring work to pinion nut and track pad removal and major engine teardowns. Speed - No Load (RPM): 5,500, Working Torque (ft.-lb.): 200-900, Variable Speed: Yes, Noise Level (dB): 98.1, Min. Hose Size (in.): 1/2, Average Air Consumption (CFM): 9.5, Reversible: Yes, Max. Torque (ft.-lbs.): 1,100, CFM at Load: 38, Impacts Per Minute (IPM): 1,000, Forward Torque (ft.-lbs.): 900, Standard Bolt Capacity (in.): 1, Tool Weight (lbs.): 12.4, Drive (in.): 3/4, Max. Reverse Torque (ft.-lbs.): 1,100, Tool Length (in.): 8 13/16, Inlet Size (in.): 3/8