That which tends to produce rotation; the product of a force and a lever arm which tends to twist a body, as the action of a wrench turning a nut on a bolt. McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc. ...
An impact wrench works by releasing stored energy. The shorter the angle it does this over, the more torque it can apply. Just like "force times distance" in a line equals energy, "torque times angular displacement" about a point also equals energy.If you watch an impact driver work to ...
If you want to achieve this torque, you either need to use a torque wrench (at least for the last turn of the installation) or else use a calibrated pneumatic wrench (which gives you the calibrated torque automatically). That's my recollection (but then, I could be wrong, it's been ...