modular drawer boxes 15 cm square

This object was made in Tinkercad. Edit it online https://www.tinkercad.com/things/cFewswMF2h6

A welder in my makerspace has a large cabinet of drawers made especially for nuts, bolts, screws, drills and so on. To separate all the different things, the cabinet comes with many small plastic boxes that create a modular sorting system. The basic box is 150 mm square.

Storing drill bits is a bit of a problem as they get longer as the diameter of the drill increases. The smaller pieces are difficult to get out of the bottom of a deep box. A common solution is to make semicircular containers in different sizes and depths.