Ignoramus25729 wrote:
In a certain surplus deal, I acquired four trailer+pickup truck/loads
of various surplus stuff, mostly electrical.

One item was a CP 1 inch impact wrench, which I really wanted due to
having two trucks and such.

The compressed air system in my building is based on 1/2" NPT pipe,
and I wonder if it is sufficient to run such a big impact wrench. Does
anyone have any relevant experience.

i

How far from the compressor to the gun? If less than 10 feet it should
work. Any farther and you're going to need larger pipe. What I did was
simple. The "normal" lines are all 1/2 " steel plumbed off a long run of
1" that acts as a manifold and water drain. Then for the big guns I ran
a dedicated line of 1" out to the spot that the big guns get used.

--
Steve W.