I made this drill index to hold 13 drill bits that I use at my electronics repair desk. They come in handy for small things and the hex shank bits fit in my Milwaukee electric screwdriver. The drill bits come in a small set of 13 from Harbor Freight Tools but don’t include anything to store the bits. I used a paint pen from Markal to color in the engraved bit sizes. The black acrylic looks great with the white markings. I used thick Cyanoacrylate adhesive with an accelerator to assemble the parts. You can also use Acrylic adhesive. The SKU of the Harbor Freight drill bits is: Item 1800.