Followed a few rabbit holes on Bronze Age casting and such. Socketed axes, swords Roman plumbata… This article discusses wear marks on socketed hammers.  Something that stood out was a bronze hammer reworking a bronze axe cutting edge was more of a planishing action. Which likely makes for nicely work hardened cutting edge. 

https://exarc.net/ark:/88735/10244 
 

 

Very interesting.  I think that it would also show that bronze tools had a shorter working life than iron or steel tools.  It might be possible to calculate how many new tools a craftsman would need over the course of X time and how that would affect the economics of the trade.  Answers always beget more questions.

"By hammer and hand all arts do stand."