Penknife
Small folding knife / From Wikipedia, the free encyclopedia
This article is about the quill and reed pen sharpening knife. For the knife concealed in a pen, see Ballpoint pen knife.
Penknife, or pen knife, is a small folding knife.[1] Today penknife is also the common British English term for both a pocketknife, which can have single or multiple blades, and for multi-tools, with additional tools incorporated into the design.[2]