"John Doe" wrote in message
...
Using ordinary tools, is that realistic?

Talking about an 8mm hole sideways through the rod (from one side to
the other), not down the center of the rod.

Thanks.

It is, even with a hand drill, if you buy decent drill bits and learn
how to use them. Based on your long history of disagreeing with people
who try to help you that may take hands-on instruction.