Well, when all other clues are discounted, what you have left is the truth. (Sherlock Holmes said something like that).
Looks like someone would wind a strip of thin metal through, and it would come out fluted, like a clarinet reed.
So ... It can only be a tool used to shape clarinet reeds.
Hey, that answer has only one vote! And I know Jess picked it too.
(That's ok. Jess doesn't get many right, so she can have the lamb).
