… you can buy joint tube which is 4.75mm diameter, but it seems almost futile to search for joint files (or chenier or parallel round files) in the same size to make a seat for the tube. The closest are round files that are 3/16" which is slightly too large. Would a better way to approach it be to get to 4mm and then use a twist drill as a kind of hand file?
Or am I being too OCD about it?
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