Coarse Sharpening Stone

Coarse Sharpening Stones are created by Blacksmiths and will sharpen a sword, axe, dagger, or polearm to perform more damage.

Source
Coarse Sharpening Stones are crafted by Blacksmiths with a skill level of 65.

The components are:
 * 1 Coarse Stone

The plans are taught by the Blacksmithing trainer.

... as a quest reward
This item is a quest reward from the following quests: