What did the San do to get tools made from iron​

The Bushmen made the spear tip out of iron, and the rest out of local wood. wood they used was from a sickle bush, and they string they used was from the muscle of an animal that they very tightly twisted. The San people, of course, did not only have weapons. They also had other tools.

Naruto didn’t die. i highly doubt it. that would cause a lot of negative flashback if such a thing happened.