Yep - Like Dan said . . .
Cut off wheel. You can put it in a drill, drill press, use a Dremel, or die grinder.
If you have a drill press, it makes the dimensional control easier, but others can be done pretty well too.
__________________
Bill
RV-7
Lord Kelvin:
“I often say that when you can measure what you are speaking about,
and express it in numbers, you know something about it; but when you
cannot measure it, when you cannot express it in numbers, your knowledge
is of a meager and unsatisfactory kind.”
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