Tease Trigger, Handle Exhaust Patented hammer assemblies with fully sealed oil, the designs can extend lifetime under full lubrication, so is a solution to poor lubrication which is disadvantage of Twin Hammer mechanism. 6 Position Power regulator: 3 settings in forward, 3 in reverse. Blade with spring mounted to prevent dead-lock or power-less problem. Model: WS-216 Std. Bolt Cap. 1-3/4" (45 mm) Free Speed 6,000 rpm Working Torque Range 500-1,600 ft-lbs (678~2,169 Nm) Max. Torque 2,000 ft-lbs (2,711 Nm) Length 249 mm Weight 7.57 kg Air Consumption 13.4 cfm (380 L/min) Min. Hose Size 3/4" (19 mm) Air Pressure 90 psi (6.2 bar) Air Inlet 1/2" PT or NPT Packing 2pcs / 15.4kg / 16.4kg / 0.9'