Sorting Trays

I designed these sorting trays so that I can lay out various combinations when I'm working on a project, each tray has the bolt size embedded in the base so I can organise the bolts I need. I have designed a variety of frames for the trays to sit in depending on how many trays I need and what configuration / layout I want.

Alternatively, when I'm sorting through a box / jar / collection of random sized bolts I can lay out the whole set of trays and use them to gather the various sizes of bolts before transferring them back to my bolts case.

I include a blank tray for all the odds and ends that don't fit into a category :)