This is a super tiny screwdriver set that works.  It works with any bits and has built-in springs so that you can easily snap-in and snap-out bits to swap between different types of screwdrivers.  It comes in a few different sizes from small to really small -- each with fun colors.

For normal length (shorter) bits, you can use either the really small or small sizes on plates 1 and 2.  For longer bits (like the red one in the model photos), use the longer bit version on plate 3.

Bits and Bambu Filaments used

• Screwdriver Bits (Amazon Link)
  • You can use any standard hexagonal bit like you would use in a drill or screwdriver.  If you don't have any already, you can use the link above.
• Filaments
  • Metal Iron Gray Black
  • Matte Red
  • Basic Sunflower Yellow