Laborious to provide a consistent edge on skinny or narrow pocketknife blades; it is simpler on larger knives. The folding pocketknife and utility software is typified by the Camper or Boy Scout pocketknife, the U.
The definition of pocketknife in the dictionary is a small knife with one or more blades that fold into the deal with; penknife. The opposite choice for a pocketknife sharpening stone is awaterstone, or whetstone.