Coat Hanger Knob

The trim plug is made for a tight press fit, basically semi-permanent. To remove it, you'll need a drill bit or a screw and pliers. There are two plugs, with the value of the negative offset denoted in the name. -0.2 means the plug should fit very slightly less tightly than the -0.2 because it has a smaller overall diameter. You can also tweak the stl sizing or slicer compensation if you want to change the fit.I printed in PETG-CF and used the -0.1mm offset plug.