Whet stone

The whet stone is a miscellaneous item in Fallout 3 and Fallout: New Vegas.

Characteristics
Sharing the same object appearance as a paperweight, it would normally be used to sharpen knives and cutting tools, but in the game it is only useful as Rock-It Launcher ammunition.

Locations

 * One can be found by the Scrapyard office
 * One can be found on a shelf in Vault 101 during your escape.
 * Another can be found at a random encounter location west of Vault 101, near a rare wood chipper and mini nuke.
 * One can be found in the southeaster corner of the Deathclaw Sanctuary.
 * One can be found in the refrigerator on the north wall of Marguerite's Shack
 * One can be found in an Average locked safe in a room to the right as soon as you walk into the Bison Steve Hotel.