SQUARE DRIVE: 3/4?; AIR PRESSURE: 6-8KG/CM2; NO-LOAD SPEED: 5000R.P.M; CAPACITY BOLT DIA.: M21(MM); MAX. TORQUE: 1300N.M; AIR CONSUMPTION: 7CFM; AIR INLET: 1/4"; TWIN HAMMER IMPACT STRUCTURE; HANDLE EXHAUST; THREE SPEED OF POWER; HANDLE EXHAUST; COMFORTABLE GRIP; SUITABLE FOR LIGHT WEIGHT TRUCK; CAR TYRE MAINTENANCE; HEAVY DUTY MACHINERY