This tool caddy was made specifically for the craftsman toolbox but can be useful or easily adapted to any needs. it fits both ¼'' and 4mm bits, a punch set, a screwdriver, and some sharpies.it also has a cutout in the back in case you need to run a cable behind it. feel free to remix as needed.. included is the fusion 360 model. additionally you can modify the optional nameplates to accomodate the bits of you choice.