I see a few modern blacksmiths only work on weapons and fantasy chain mail, and as cool as I feel it is, I can't help but think if blacksmiths were as common as they are in a lot of fantasy games, they would probably not be forging a lot of swords for everyone in the village, so what would they have forged more of?
Blacksmiths made tools such as axes, hammers and the like. They also made nails, screws and other fasteners before machines were invented to make such things. And they made horseshoes, repaired wagons. Basically a blacksmith was a machine shop and vehicle repair shop in the pre-industrial world.
Edit: there is a /r/blacksmith where you can learn more about things blacksmiths can do. It's pretty interesting.