I bought some Harbor Freight air line connectors and they leaked badly right out of the package. They were the brass type. The only air tool I bought was a pneumatic saw and it worked pretty well for about a year. It was only $10. I took it apart and cleaned it up and cut a new gasket, it worked a bit longer then died. Just leaked too much to give the saw any power. Ended up using a hand jig saw with a metal blade. Actually worked well. I was just cutting out rusted body panels.
A day without laughter is a day wasted- Charlie Chaplin When wrestling a grizzly bear, you have to keep at it until the bear gets tired, not when you get tired. 1948 Chevy 2-Ton
