I found this interesting link and thought the crew here would enjoy it. Take a guess as to what this thing is, then take a look at the link for the answer.
What is it? Answers 174
I've actually used one of those, borrowed, and it demonstrated the difference between 2F, 3F, and 4F in a most convincing manner.
Yes, very interesting and you could probably slice a pizza with it.
Thanks for sharing. I would have thought it was for cutting something.