Extremely high breakaway torque of 1400Nm. It combines light weight and high power . Strong jumbo single hammer clutch. Composite motor housing for reduced vibration and temperature stability. Breakaway Torque refers to the tool’s ability to remove a bolt that has been tightened down using a torque wrench. This machine can loosen a bolt tightened to a torque of 1,400 Nm. Note that the 1,400 Nm does not mean the actual tightening torque of SI-1460 & SI-1460SR in reverse rotation mode. Since torque capacity is effected by many variables like bolt type and size, thread conditions, air pressure, CFM, etc., a comparison test can be difficult for an end user to replicate.