rivet gun, manual; how to make powerfile w grinder hack; restore thread in special screws

https://www.youtube.com/watch?v=_ZuRUcJhpaw
rivet gun, how to use

https://www.youtube.com/watch?v=cLW9WGpRh50
 rivet adapter for electric drill (electric rivet machine)

https://www.youtube.com/watch?v=myEoFzTDjbM
rivetting explanation in Cantonese

Maybe useful...
if you use an adapter for an electric drill
here is the site, gd place to buy all kinds of tools, amazing.  even chainsaw disc (a disc with mini chain attachment!  v dangerous tool, but be careful w all power tools.)
https://www.banggood.com/HILDA-Electric-Rivet-Nut-Gun-Cordless-Riveting-Drill-Adaptor-Riveting-Tool-Insert-Nut-Tool-p-1127549.html

How to make a powerfile, grinder hack

https://www.youtube.com/watch?v=6fh67r-P0AM
v gd video, cut to the quick, clear no time drag, v nice tool.

restore thread in special screws
https://www.youtube.com/watch?v=jvSo7XK-V5k