I’ve just started working with metal and make do with some basic tools. I do however worry about that all my pieces are basically annealed from the final soldering. Do i need a tumbler to work harden? I’m not really into super shiny pieces but i understand you can get some cool satin finishes as well with for example cheramics but I’d mainly use it to harden. To sum it up: Do i need one to harden the metals?