1¼" Dia. brings "round" tubing to mind but I suppose you could mean 1¼`square tubing.
You mention "boring" holes for a setscrew, what is the wall thickness?
What is the "setscrew" size.
Need more info.
Edit, Disregard the above, I found the explanatory OTHER post! (still wondering about 1¼ Diameter)
You mention "boring" holes for a setscrew, what is the wall thickness?
What is the "setscrew" size.
Need more info.
Edit, Disregard the above, I found the explanatory OTHER post! (still wondering about 1¼ Diameter)
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