Ingersoll-Rand 1770G Edge Drive Air Ratchet, BlackHighlights: 1 2" Vsr Black color Features variable speed reverse With 55 ft lb of maximum torque and 170 rpm free speed A TwinPawl Plus head design, reinforced heat treated ratchet head, and ergonomic grip Specs: average air consumption (CFM) is 3 CFM at load 20, PSI is 90, noise level is 94. 8 db Inlet size is 1 4", min. hose size is 3 8", length is 10. 4" and weighs 2. 6 lbs