Dremel Rotary Tool Bit Holder

In a Fusion 360 forum one of the members asked how to design this rotary tool bit holder in the pic. I decided I wanted to try and design it from the pic myself. There are two versions. Each version holds a different diameter shank size - 2.33mm (holes are 2.55mm in diameter), 3.175mm or 1/8th inch (holes are 3.4mm in diameter) All holes are 5mm deep and spaced out between 6mm or 12mm. I have included a variant with a tray attached to the from each with 2mm and 3mm diameter hole