(NEW! / SHORTEST! / BIG TORQUE! / LIGHT!) Driver Size: 1/2" Free Speed : 11,000 rpm Max Torque : 500 ft-lb (US-IWH1417-J4) Inlet ( NPT ) : 1/4" Clutch Type: Jumbo Hammer Hose Size: 10 mm Air Consumption: 7.06 CFM Sound Pressure: 94 dBA Vibration: 2.8 m/s2 Weight: 1.3kg Length: 99mm