Electro-hydraulic hole punch.
<video controls autoplay loop> <source src="https://diqn32j8nouaz.cloudfront.net/metal_punch_handheld.mp4" type="video/mp4"> Your browser does not support the video tag. </video>
Previously:
https://www.homemadetools.net/forum/...616#post136355
https://www.homemadetools.net/forum/...172#post145675
https://www.homemadetools.net/forum/...618#post139635
https://www.homemadetools.net/forum/...913#post137451
https://www.homemadetools.net/forum/...773#post143963
