I have migrated to Printables because of the security and UX issues here at Thingiverse. You can find this model here:

https://www.printables.com/model/166851-tank-tool

A small tool for opening atomizers tanks (RTA, RBA) or even drippers (RDA).

Important note:

This version is obsolete. The newer version is superior in every way. Click this link to see the new and improved version: https://www.printables.com/model/166848-steam-engine-tank-tool