Threaded insert installer/remover

https://www.youtube.com/watch?v=we_GR11LYCA
This tool was developed to install "Nutserts" / "RivNuts" into 3D prints.
It requires:
1 Hex head m4 screw (preferably high tensile)
2 m4 grub screws
1 m8 grub scew
1 bearing 4mm I.D, 13mm O.D, 5mm wide
1 m4 washer

It works well to remove brass inserts if you want to upgrade to Nutserts, however it has limited cycle life if used to insert Nutserts. The thread will wear and bind up eventually.