Modular Drill Bit Tray

I created this modular drill bit tray for my various drills. I saw many on Thingivrse, but figured it would be nice to have one that I could grow. There are various lengths, all interlock.

The STEP file is included, I used Fusion so it may not work well.

Update:
I canned the 8 digital numbering, it didn't work great. I have now provided a blank in each size, 70-130mm. I also included the metric numbered ones I made myself using a clear arial digit which paint fills must better. I used standard acrylic blck paint and an syringe with a needle to paint in the numbers. But a bit of tap with a marker works just as well.

xx-blank are the unnumber ones.
x.x-size are the numbers ones.

I'll add the rest of the numbered ones as I make them.