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thank you for your answer, I just googled what a piloted counterbore is and didn't know those existed.
Regarding the reamer, so it looks like I need to buy new drillbits (at least one).
I have to say I am lost when it comes to the US measurements, between drills that come by number and those that have fraction of inches. Would you mind giving me a recomendation for a drill size when I will then ream a 3/16" hole.
Again sorry for the newbie questions but between being new to this and moving from metrics land to the US it is easy to get confused.
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