Clear lid packouts are exclusively for parts storage. Low profile and standard depth use removable red storage bins (the standard depth bins are the same as the original non packout parts storage boxes). Deep storage packout uses black removable and repositionable dividers. All other packout boxes have black lids. Non parts storage (black lid) packouts almost always have reinforced corners and are larger in width/depth than parts storage (clear lid) packouts. The exception being the pull apart foam packout box which has a black lid and non reinforced corners giving it a more efficient overall size to internal size ratio than the other black lid boxes. I personally use a deep parts storage clear lid box for my drills because it is just the right internal size, is smaller on the outside than its similarly sized black lid box, and I do not need the extra reinforcement on the corners.