I have a few socket sets in each size, always comes in handy to have two of everything. Although I only have one set of 1/2 impacts. Really only use those on tire rotations. I don't own many impact tools.
I have a SAE 19pc Deepwell Grey Pneumatic and a Sunex Deepwell metric 26pc set. They both are really nice. I like the grey pneumatics case a lot better because it is more compact but if you are going to be putting them on rails, then there is no real winner. I like them both equally as far as sockets go.
