I have a handle on 1.875 OD .035 wall but I would like .020 wall.
I'll probably use the .035 wall on Marks engine unless some
.020 wall magically appears.
-- 
Paul Lamar ...No rotor no motor.

Paul,
.035" =.9mm which is an off the shelf standard  size for 2"OD - so they tell
me. A .2" = .5mm would be pushing it IMHO, half a mm is mighty thin.
I'm after some smaller pipe and have to settle for 1.2mm = .047" and am
lucky to get it that thin, as this is a low demand size and twice the bloody
price.
George ( down under)


.020" is .5 mm not .2".  Don't forget, this SS tube is going in
a complete existing bore. There are no holes anywhere.
What holes there were are now filled with JB Weld.
The tube will have complete support all along its length
and all around its circumference. .005 would work if you
could get it in there.

Hey maybe a soft drink or beer can? Darn too big.