Gridfinity Labeled 4mm Bit Holder (90 pieces)

This is a combined holder for the 64 bits in iFixit's Mako kit, as well as the 24 bits that came with my Miniware ES15 screwdriver.

Inspired by @RobLudwick's excellent 99-bit holder, the bin is designed to be lined with these 20mm x 20mm magnetic squares:

https://www.amazon.com/dp/B07GQQBZS3

The magnets should go under the insert panel, so that the bits sit directly on top of them. These magnets are quite weak, but they're still enough to hold the bits with some force.

I left enough room in between the bits so that they are easily accessible with human fingers, and so that I could add nicely readable labels.

The bin is 6 units high, and it is fully stackable, even when filled with bits.

The case fits into Zack Freedman's Gridfinity system using a custom design inspired by @grizzie17's Gridfinity Refined and @rekk's Gridfinity Refried. You can push 6x2mm magnets in the nice press-fit magnet slots, or use a thumbscrew for a more permanent attachment. The thumbscrews printed from @grizzie17's files will fit this model, too.

Formatting the Labels

First, you'll need to figure out what arrangement you want to use for the bits you have. You're own your own with that – only you know what you want to optimize for.

Once you know what will go where, you'll need to print labels that match your design. I have a Brother P-touch label printer, and I designed the insert's grooves specifically for this “super narrow” 3mm tape:

https://www.amazon.com/dp/B0055FGMNY

To typeset the rows, use the P-touch Editor software that comes with the printer. Follow the steps below:

1. Make sure Print Media is set to a 3.5mm tape. Fix the label width at 72mm.
2. For the label contents, add a 9-column table, with a 0.25pt dashed border line. 
3. Set the table to 72mm wide and 5mm high. The table should have 1mm of overhang from the top and bottom, so that only the vertical cell borders will be visible.
4. Fill the cells with content describing the bits in the layout of your choosing. To identify the bits, I borrowed the icons that iFixit uses in its product images. If you'd like to use the same images, I uploaded them in the file driver-symbols.zip.

Here is how a label should look in your editor window:

When designing cell contents, be aware that the printer will leave a 2mm margin unprinted from both edges of the label. Avoid putting text in that area.

Make sure to save your label documents to reuse them later, in case you decide to adjust your arrangement.