The Ingersoll Rand Thunder Gun puts pit-crew speed and power in the palm of your hand. Looks and sounds just like the original tool used by most NASCAR pit crews! It"s the fastest 1/2in. Impactool available, delivering 10,000 RPMs. Hear and feel the power! Features a black powder-coated handle and housing. Put this tool to work at the track or in your garage, and at a much more affordable cost than the original. Hammer Mechanism: Twin, Impacts Per Minute (IPM): 1,200, Max. Reverse Torque (ft.-lbs.): 625, Drive (in.): 1/2, Forward Torque (ft.-lbs.): 500, Reversible: Yes, Inlet Size (in.): 1/4, Average Air Consumption (CFM): 5.4, CFM at Load: 23, Tool Weight (lbs.): 6, Variable Speed: Yes, Speed - No Load (RPM): 10,000, Standard Bolt Capacity (in.): 5/8, Tool Length (in.): 7 5/16, Min. Hose Size (in.): 3/8, Noise Level (dB): 105, Working Torque (ft.-lb.): 40-400