Features: Feature packed, Generation Series twin pawl air ratchet. Contoured handle insulates user from chill and vibration. Finger operated trigger and textured grip allows added control, even with greasy hands. Low noise exhaust adjusts 360�, keeping airflow away from operator. Four-position air regulator integrated into air inlet adjusts torque output. Specifications: Model No: GSA21 Drive: 1/2"Sq Maximum Torque: 60lb.ft(81Nm) Free Speed: 180rpm Air Consumption: 4cfm Operating Pressure: 90psi Air Inlet Size: 1/4"BSP Length: 280mm Weight: 1.2kg Noise Power/Pressure: 101.78/90.78dB(A) Vibration/Uncertainty: 4.52/0.57m/s� Load Vibration: 13.88 Noise Power: 102.89 Noise Pressure: 91.89 Height: 54 Width: 304 Length: 78