Air ratchet wrench (ARW121)

Square Drive: 12.7mm(1/2")
No-load speed:160RPM
Max.torque:68N.m(50Ft-Lb)
With Europe type connector, USA type connector, Nitto type connector and Italy type connector.
Front Exhaust
Capacity Bolt Size:1/2"(13mm)
Air Inlet (NPT) : 1/4" 
Air Hose(ID): 3/8"