Crossman 71-804 气动扳手（1/2英寸，250英尺磅，6.3 kg/cm2，7000RPM）

Wrench Type: 1/2 inch

Recommended Air Pressure: 6.3kg/cm2 (90psi)

Maximum torque output: 250 ft-lb ( 1 ft-lb = 1.355818 N.m) 

Speed: 7000 RPM

Air Inlet: 1/4 inch NPT, 1/4 inch BSPT