Does anyone here with experience in plumbing or piping know if a 3/4" pipe can fit inside a 1" pipe to the point where you can slide it in and out like a telescope to make an adjustable stand post?
According to this link and if my math is correct, the inner diameter of a 1" SCH 40 pipe is 1.049" and the outer diameter of a 3/4" SCH 40 pipe from the chart is 1.05" which is .001" too big. If I were to go to Home Depot would this difference matter?
Also I have a random question, are "all-purpose" drill bits able to drill through galvanized steel piping and is there a good method for drilling on round surfaces?
The reason I'm doing this is because I'm trying to build a DIY bike repair stand with an adjustable height. It's loosely based off this, but with a "Quik Klamp 3-Way Open Corner 1" (sorry I couldn't post another link) acting as the base-support piece mainly because the whole thing could be disassembled and I'm hoping a bit more solid.