Recently got myself a rather beasty Dewalt Battery Impact gun on 1/2" drive. Needless to say it has made a few jobs that would have possibly taken hours, with impossible to remove bolts, take a matter of seconds as it removes the toughest stuck nuts. Now I'm kicking myself for waiting so long to get it. It has something like 960nm of torque and seems to laugh at stuck bolts in things like A Frames etc.