Customizable Bit Holder

This file will allow you to make a customizable bit holder. You can change the diameter of the "holes" where the bits will go, so you can use it for any size bit. You can also change the height of the steps, the distances between the holes, number of holes, number of rows and other things. Just open the spreadsheet and change the parameters; the model will change accordingly.

I tried making the holes hexagons instead of circles, but for whatever reason FreeCAD freaks out when you change the parameters in the spreadsheet. If anyone knows how to fix this, please let me know.