The Packout drawers have a nominal interior dimension of 16" wide by 12" deep. The long Milwaukee dividers run front-to-back, so max tool length is 12" when using dividers. These partial dividers allow you to configure in multiple ways to store tools up to 16" long, or of odd shapes. Note that the rear guide of the box is wedge-shaped and will hold the partial divider securely, but the front guide is just a guide & will not hold the partial divider securely.
Print in the default orientation of the STL (upside down). Mouse ear brims provided sufficient adhesion on my X1C textured PEI build plate.
Links to all my drawer dividers:
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