This is my first model.

The box can store 10 files, a countersink and a scalpel. Except for the countersink all tools snap-in nicely and won't fall out then the box is turned over. There is also room for the replacement blades of the scapel.

These are the tools the box is designed for (german amazon links)

Scapel: https://www.amazon.de/gp/product/B000KT9C28/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1

File set: https://www.amazon.de/gp/product/B00E015MLC/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1

Countersink: https://www.amazon.de/gp/product/B00NVPMV5I/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1