Heavy lift ring crane.
<video controls autoplay>
<source src="https://s3-us-west-1.amazonaws.com/hmt-forum/heavy_lift_ring_crane.mp4" type="video/mp4">
Your browser does not support the video tag.
</video>
Previously:
https://www.homemadetools.net/forum/...857#post111855
https://www.homemadetools.net/forum/...2313#post76134
https://www.homemadetools.net/forum/...3600#post78372
https://www.homemadetools.net/forum/...3100#post98061