Hex Key Set Holder

My wife bought me a set of Craftsman hex key wrenches from her work, but they were just in a plastic package, and didn't include any sort of holder or stand to put them in, so I designed this simple model to store them in! The set included 7 metric and 7 standard hex keys.

I designed the model in Blender. It took me a while to get used to modeling again and get used to all the controls, and it took me a few tries printing a smaller test block to see if I had the tolerance set right to allow the tools to fit in the holes. When I imported it into Cura, the software scaled the model and it was really tiny. I had to adjust the scale. On the Y-axis in the scale selector, it should be 180mm long, FYI.

UPDATE: Changed Standard to Imperial and added it as an extra optional model for those around the world who don't call it Standard. :)