Gridfinity SAE Forstner Bit Holders 3/8" shank

Decided to make some holders for my forstner bits in my tool chest.  These are as universal as I can think to make them as there is some variation in shaft and shank lengths, but the diameters seem consistent.  I based these off of measurements of bits I bought from Rockler wood working.

I set the height to accommodate up to 2 ½" bits whenever I get around to designing wider bins.

The color changes are done just by setting a color change in the layers.