I have run into a small issue and want to throw to the crowd for ideas on how to fix it / the right tool to use.
I have 4 round windows cut and salvaged porthole glass ready to go in. I used a router to put a 5mm rebate around the holes and the glass drops in nicely - except on one, the hole is 1-2mm too small.
What is a good way to reliably shave off that 1mm from the inside of a circle so I can run the rebate bit around again and have the glass fit?
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