On Feb 9, 12:34*pm, Ignoramus25972 ignoramus25...@NOSPAM.
25972.invalid wrote:
...
To that end, I would need to drill an estimated number of 112 holes,
probably 9/16" or 5/8" diameter each, in 3/16" steel tubing.
....
i

3/16" wall thickness?

Round or square tubing?

jsw