Ingersoll-Rand Model 293 1" Super Duty Air Impact Wrench.
This is the most powerful 1" wrench for spring work, tractor pads, bus maintenance, and off-road and farm equipment work. The built-in Pressure-Feed Lube System protects the unique Twin Hammer Impact mechanism as it delivers the ultimate in power.
Up to 2,000 ft.-lbs. of torque.
Most powerful 1" wrench.
Free speed: 3,500 RPM;
Max torque: 2,000 ft.-lbs.;
Avg air consumption: 12CFM.