A router cutter storage cabinet

Over the years I have accumulated a decent collection of router bits and decided to upgrade their storage from the piece of mahogany drilled with a grid of holes to a storage drawer that can be mounted under the router table.
There was a fair amount of scrap wood that I had in stock; some left over oak flooring from a friend, a couple of cutoffs from an old oak open shelves and a few pieces of baltic birch plywood.

A design was made using Sketchup so that the internal dimensions of the drawer could take two rows of Trend router trays. I know I could drill holes in some wood myself but these are well made and cheap enough to buy in bulk.

Trend 1/4" router tray