Can anyone recommend a good 3/4" impact wrench?

[belfert]

I can guarantee my 5 HP compressor makes a heck of a lot more power than say a "5" HP Craftsman that costs $199.  Usually the larger compressors tend to be more realistically rated, but I guess even mine stretches the truth a little.

[Oonrahnjay]

     Brian, I appears to me (just a guess but a pretty experienced one) that if your system has any problem with air tools -- even big ones -- it would only require "resting" once in a while and letting the system catch up.  But probably it would work just fine.  I think you have the capacity there - the question is air lines and valving.

[chev49]

the garage air compressor only pumps up the tank. so what size tank you have will determine how long the air wrench will run.. and tank outlet size you use also. if you have a small tank, you can always get other tanks and hook half inch or whatever size outlet the tank has and hook them all together.

i have a large air compressor from a tire shop, which has lots of cfm, but only around a 30 gallon tank under it, and i still have to occasionally wait for the air to build up if i am sandblasting or something like that. 
(been to lazy to hook up the other 4 tanks i have...)

i dont run my tools of the main bus tank...

[belfert]

Running stuff off the bus system would only be for emergencies on the road.  I can't bring my big 60 gallon air compressor on the road.

[Busted Knuckle]

Brian I have our Dina set up where I can hook a hose for air tools or airing up tires off the top of the tank next to the fuel tank on the drivers side! Works great, hasn't let me down at all!
  BK 

[belfert]

One final question:  What coupler type do you guys use with 1/2" hose?  Do you still use the standard M type coupler?

The reason I ask is most of the Goodyear 1/2" air hoses have 1/2" NPT ends.  I like Milton air parts, but they don't make standard M couplers in 1/2" NPT.  They only go to 3/8" NPT.

[Lee Bradley]

I use G type only; they don't leak.

[belfert]

I use G type only; they don't leak.

Are you using G type only because they don't leak, or also because they pass more air?  I've not had any real issues with good quality M style couplers.  I've certainly seen tools using G style couplers so they seem like a good choice.

[Lee Bradley]

I don't know that they pass more air for the same size coupler but all the other types end up leaking. Just my experience.