the tools of the trade
the tools of the/(one's) trade
The specific tools used in a particular profession. If you want to become a painter, you have to familiarize yourself with the tools of the trade—which include more than just paintbrushes. As a reporter, the tools of my trade used to be a pencil and a pad of paper—but now technology has changed the game.
the tools of the tradeor
the tools of your trade
The tools of the trade or the tools of your trade are the skills and equipment that you need to do your job. He was never really a novelist, having no use for the usual tools of the trade such as plot and suspense. The peasants were deprived of their animals, the tools of their trade, and their land.