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G7321 - 3/8" Impact Wrench | Suitable for light workshop and garage use. Twin hammer mechanism with a 4 point adjustable air (speed) forward/reverse speed regulator. Ergonomic and comfortable handle grip with vibration dampening a fixed inlet and exhaust. One finger stop/start trigger operation. Downward facing external exhaust in handle. | Square drive size: 3/8" | Free speed: | position 1: 8,000 rpm, | position 2: 9,100 rpm, | position 3: 10,100 rpm. | Reverse:10,200 rpm. | Maximum torque: 393 Nm (rev). | Working torque: 339 Nm (fwd). | Recommended air pressure: 6.2 bar (90psi). | Air consumption: 3.4 cfm* | Air inlet thread: 1/4" NPT. | Minimum air hose size (ID): 10mm (3/8"). | Overall length: 160 mm.