downed tools

Verb

down tools (third-person singular simple present downs tools, present participle downing tools, simple past and past participle downed tools)

1. (UK, idiomatic, informal) To stop work, especially when taking industrial action.
   • But when railway workers downed tools almost a year later, on September 26 1919, Britain was in many ways still a country at war.2020 January 2, Conrad Landin, “Strife and strikes in post-war Britain”, in Rail, page 51