Specification:

Square Drive: 3/8"(9.5mm)
Bolt Capacity: 7/16" (11MM)
Free Speed: 9,500 rpm
Max. Torque: 200 Ft-lbs
Air Inlet:1/4"
Air Pressure: 90PSI(6.3 kg/sq.cm)
Avarage Air Consumption: 3.8cfm
Noise Level: 95 dBA