1/2" Indurtrial Straight Type Two Hammer Mechanism Air Impact Wrench.
Square Drive:--------1/2" Cap.Bolt Size:--------3/4",(16mm) Net Weight:------------7.5 LBS(3.4Kgs) Overall Length:-------13" (330mm) Air Consumption:-----8 Cfm Air Inlet:-----------------1/4"(Pt) Air Hose:----------------3/8" (I.D.) Free Speed:-----------4,400 RPM Air Pressure:-----------90PSI Max.Torque:-----------380 FT-LB(500 N-M) Hammer Mechanism:TWO HAMMER