Keep some emergency mini bits and screwdriver on you with this keychain!
Holds 5 4mm precision bits.
Snaps nice in the holder thanks to a 5*5*5mm magnet.
The same magnet keeps the bit in place when using it.
Screw is a pc-case screw, any short 3mm ish will do as long as its magnetic
Glue in the magnet with some ca glue.
The author marked this model as their own original creation.