<VV> How to evaluate an air tool - minimal corvair

[jryall at juno.com]

I have had several air impact guns, and have found that they aren't worth
a hoot when used at 80 to 120 psi like a home air compressor generates. 
I have been using electric impact wrenches exclusively for quite a few
years now.  They work fine.  Northern Tools has one that goes for about
$70-$80.  Sears carries the identical gun for a little bit more.  Through
Sears, there are parts available to fit the Northern Tool gun, but you
must use the Sears gun part number when you search for it in their parts
website.

John Ryall