Small, retractable diamond rod to carry with you in the field for quick sharpening.
This Taidea outdoor sharpener has three edges with different radii to fit different serrations. The grooves between the three edges can be used to sharpen small pointy objects, fish hooks for example. From sharpening a serrated blade to touching up an axe blade, this pocket sharpener can take care of it.
A handy, diamond field sharpener for serrated and plain edged blades.