Can't tell my left from my right!

DavidR8

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Super newbie question.
What orientation is used to determine if an insert holder is left or right handed?
The only way this make sense to me is if I'm at the end of the spindle looking toward the tool post.
This is a left handed tool
Screen Shot 2020-05-03 at 8.39.27 AM.png

And this is a right handed tool.
Screen Shot 2020-05-03 at 8.40.59 AM.png
 
Thanks Doc.
I would have thought there was some relationship to the cutting direction or something similar.


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A left handed tool cuts from left to right, a right handed tool cuts from right to left.

Ahhh that make total sense! Thank you!


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