Pencil sharpener
A pencil sharpener was a device used to grind away wood and graphite in order to improve the point of a pencil.

On  in 2266, James T. Kirk asked Miri to sharpen several pencils for him. It was a ruse in order to keep her busy while he and his crew searched for a cure to a deadly virus that had been created by a disastrous life prolongation project which had been attempted in the planet's past. ()

See also
Paper
Pen
Pencil

External link 
 
Household tools