Pullmax-style reciprocating hammer - video

Pullmax-style reciprocating hammer. By Iconic metal works.

8:52 video:
https://www.youtube.com/watch?v=FsPK9O-iLOE

4:46 video:
https://www.youtube.com/watch?v=wYSRvhJod_M

Part 3. By Iconic metal works. 8:35 video:

https://www.youtube.com/watch?v=yodxIhsQey0&t=3s