When to use a v bit or engraving bit. What's the difference between the two? What application decide when you would use what bit?

When to use a v bit or engraving bit. What's the difference between the two? What application decide when you would use what bit?

The answer to this student question can be viewed in the 1/31/2023 Q&A Meetup at the 00:28:05 timestamp(must be logged in to watch).