Drill bit types and applications guide.
https://s3-us-west-1.amazonaws.com/h...e_fullsize.jpg
Previously:
https://www.homemadetools.net/forum/...338#post204368
https://www.homemadetools.net/forum/...330#post208279
https://www.homemadetools.net/forum/...972#post198832
https://www.homemadetools.net/forum/...213#post149939
https://www.homemadetools.net/forum/...474#post177728
