One of my players asked if he could buy a Whetstone, I looked into my Pathfinder Corerulebook and saw it listed, but when looking for a description of what the hell it did, I saw there was none!
So what's the point of them? I do know the real world use for a whetstone, but is the whetstone just there for fluff or was there a mistake and it's mechanical use was forgotten in the book?
Thanks beforehand for any input.