Tool time Tuesday and a new addition to my collection.  My family gave me an impact wrench for Easter.  I haven’t had a chance to use it yet, but I’m looking forward to putting it to the test on my wife’s Jeep.  I’m sure you’ve seen or heard one of these in action, especially if you’ve ever had your car in the shop for some work.  Automotive techs use them a lot, in particular when changing or rotating your tires.  My wrench is battery powered but they can be electric, pneumatic or hydraulic.  Some models allow the user to adjust the amount of torque the tool will apply, so things don’t get too tight or broken.  The first impact wrench was invented by Robert H. Pott of Evansville, Indiana.  In addition to spinning to tighten or loosen nuts and bolts, there is also a hammering action that helps to coax the nut or bolt to loosen it’s grip and spin off without breaking.  Listen to the podcast here;