Broken bolt and screw extractor - GIF

Broken bolt and screw extractor.

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Previously:

https://www.homemadetools.net/forum/...559#post197299
https://www.homemadetools.net/forum/...873#post179259
https://www.homemadetools.net/forum/...744#post183010

If you're going to drill it out, use a left-handed drill; chances are that will unscrew it. Flooding it with a bit of Kroil prior to drilling will also help.

I don't see it. Homemade tools I mean. I can't see anything here that he made whether from anything like scrap or whatever.