Laser hardening a part.
<video controls autoplay loop> <source src="https://diqn32j8nouaz.cloudfront.net/laser_hardening_jn23.mp4" type="video/mp4"> Your browser does not support the video tag. </video>
Previously:
https://www.homemadetools.net/forum/...014#post217601
https://www.homemadetools.net/forum/...637#post209429
https://www.homemadetools.net/forum/...173#post199577
https://www.homemadetools.net/forum/...792#post190531
https://www.homemadetools.net/forum/...735#post128966
