6mm Router Bit Holder.

Bought some cheap router bits from aliexpress and they came without box, so i had to make a storage holder for my 6mm router bits. It can be mounted on wall.

The holes are 6.25mm wide, so if your bits doesn't fit then you need to calibrate your printer and/or filament. You could always use a 6mm drill to enlarge the holes if neccesary.