Wiring bellows tubing

Yeah, I used a step drill as 3/4" is apparently the one size in my "monster drill" collection that I don't have. It's smart to paint that bare metal (I'll use some of my POR-15) as it will undoubtedly see moisture -- but no salt... not under my ownership at least. Doors to be done tomorrow. Thanks again. This will all go into the power window tech article on which I'm working.