Sorry to say, but unless you have a routine that does it for you, subtract one cyl from another is it...
I found this VLX on Cadalyst or theSwamp or something... I use it for modeling the jacket on offshore platforms, mostly... our engineers export the centerlines of all beams, which works great for when it's all round pipe. The routine allows you to pick centerlines, the outside diameter, and the inside diameter, and it creates pipes on those centerlines...
I think I found it on a random website, but for the life of me I can't recall, and there's no readme for it... and what's even better... I can't remember the command to invoke it o.0 I haven't used it in a while.
...I'll post when it comes to me... *slaps forehead*