Gamebit security bit driver for 4 mm screwdriver

Summary

I was trying to dissasemble a Gameboy Color clone (GB Boy Colour) and I notice that they used some nasty security screws I did not had a bit for them.

Logically I printed one, and it worked. 

NOTE: The part is quite fragile, it was only enough for 2 screws, unscrewing them and screwing them back.

Print Settings

Resolution: 

0.05

Infill:                      

100

Notes: 
 

Print pointing UP, with the part that goes to the screwdriver at the bottom. I used normal PLA.