The principle of tool angle selection in lathe cutting.
https://diqn32j8nouaz.cloudfront.net...e_fullsize.jpg
More:
https://www.machinemfg.com/tool-angl...lathe-cutting/
Previously:
https://www.homemadetools.net/forum/...264#post126671
https://www.homemadetools.net/forum/...243#post126593
https://www.homemadetools.net/forum/...291#post150307
