>>9391824I already have round file for that but thanks.
>>9392028I actually had to sand the hole since pin goes smoothly into flesh colored part and thus sanding it would make it too loose.
Overall yesterday was very unlucky day as I broke one of twintails round joint part by accident while trying to pull it off (after inserting they turned out to be too tight and refused to move). Now I have to both figure out how to remove broken part from socket and how to fix it. /m/ suggested drilling small hole from the other aide and push it and then trying to reinforce broken one by drilling both broken elements, inserting metal wire inside and gluing together.
This really sucks when I break something by merely testing if it fits.