This for standard 1/4" / 6.25mm hex bits. For small 4mm bits, see this model.

This packs 20 short bits into a single 1x1 bin size. I left off the lip to improve bit access. The hex holes are sized and chamfered to improve ease of insertion/removal. Bit access is good so long as the bits are the same length.

The base is compatible with half-sized grid. The second plate has a version with magnet and screw holes. The base was initially generated with the Fusion GridfinityGenerator.