Most air tools are only rated for 90 or 110psi. TO go above that is risking the life/safety of the tool (an impact wrench is not something I'd want flying apart on me)

I have seen "stuck" nuts, that required a full 15 seconds of impacting at full power to come loose. Count out 15 secs, thats a long time to hold an impact on a nut.... I'd venture that few 120vac air compressors would be able to make that much air (you'd need a 220v model...)

I have a good (Milwaukee?) 120v electric impact - it has yet to let me down - they cost more than air impacts but less than new air compressors. Its an option.

-John

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2009 Kia Sedona
2009 Honda Odyssey EX-L
12006 Jetta Pumpe Duse
(insert Mercedes here)

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