Tube wrench
The tube wrench is a handy tool, usually made of plastic , but traditionally made of metal , for emptying tubes of all kinds almost completely . One end of the tube is inserted into a gap and then rolled up very tightly and evenly with the help of the tube wrench and squeezed out .
The other picture shows a tube wrench that is carried in a housing. The key and the rolled-up tube are pressed upwards by means of spring force to ensure that it is tightly wound and to prevent it from rolling again.
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Wiktionary: Tube key - explanations of meanings, word origins, synonyms, translations
