Tiny machinist hammer - video

Tiny machinist hammer. By Inheritance Machining. 15:15 video:

https://www.youtube.com/watch?v=J8qtSIwa7yo

From the title, I was expecting something like 3" long, but then my entire lathe is about the size of the cross-slide on that one :-)

Also I have that very model original hammer, or a very close commercial copy of it.