I got to use a brand new Chicago Pneumatics 3/4" drive air wrench Sunday afternoon at a friends farm. I don't know the model number but it's quite a tool. [img]/forums/images/icons/smile.gif[/img] Of course, in exchange for the 'privilege' of being the first one to use it, I got to be the one to put duals (the outside pair) on a 150 HP International tractor. [img]/forums/images/icons/crazy.gif[/img] I don't know what size the tires were but I do know they were loaded and probably weighed as much as my entire tractor. [img]/forums/images/icons/shocked.gif[/img] That would have sure been an awful lot more work without that impact wrench, I'm sure. Frankly, it was about enough work with it. [img]/forums/images/icons/wink.gif[/img] [img]/forums/images/icons/smile.gif[/img] [img]/forums/images/icons/grin.gif[/img]