Nutcracker NUT-O-MAT helper

I like the laooola Nut-O-Mat ( https://www.thingiverse.com/thing:2705492 )but, for me, it is hard to screw. I lack strength. So I made a piece to help screwing. It adds at the screw head. I suggest you to put it when filament is warm, just after printing, so it will never move. Hope that will help you.