The main tool used on this factory is a metal half-barrel with holes.Amazing video. I love how there is no talking, nice music, and that you can just immerse yourself into the wonderful labor being done.Nice, these guys listening to classic music during the work.Finally, a YouTube metal forging video that doesn’t begin with shoveling dirty scrap metal into a cracked crucible to melt down. Actual quality control.Thanks for sharing the video. I found it surprising how much labor and metal cutting went into making those nuts, would have expected it to be more efficient.