No car repair shop or garage can be complete without a powerful impact wrench this impact wrench uses a handy rocker switch for fast switching between clockwise and anti clockwise rotation to easily loosen or tighten nuts the air powered motor delivers a maximum torque 300 nm when tightening the torque is limited to 100 nm to avoid damage to the rim wheel nut technical specifications drive square 127 mm max torque counter clockwise release 300 nm max torque clockwise