This air impact wrench provides high power for suspension work and other heavy-duty automotive jobs. Features include twin hammers which produce 1300 BPM; variable speed trigger to 7000 RPM; torque range of 40-350 ft.-lbs. with 500 ft.-lbs. max; 5.4 CFM; 1/4 air inlet; and Tool Length (in.): 7 5/16, Max. Torque (ft.-lbs.): 500, Impacts Per Minute (IPM): 1,300, Inlet Size (in.): 1/4, Speed - No Load (RPM): 7,000, Max. Reverse Torque (ft.-lbs.): 500, Tool Weight (lbs.): 6, Average Air Consumption (CFM): 5.4, Min. Hose Size (in.): 3/8, Noise Level (dB): 93, Working Torque (ft.-lb.): 40-350, CFM at Load: 21, Drive (in.): 1/2