Drive Size 1/2" Capacity Bolt DIA M18 Max. Torque: 720 nm Free Speed 8,000 PM Air shipping: 380 L/min Air Inet 1/4" Hose Size: 3/8" Air Pressure: 13.2 - 17.6 lbs (6 - 8 kgExcessive length: 7.6 inches (192 mm).