mechanical pencil is Mechanical writing instruments that can be replenished at any time of the graphite core. Widely used as a substitute for a pencil.
Overview
Unlike the pencil grip is separated from the core part of the body, making it possible to supplement the core out. Therefore, there is no need to cut the wick to use a pencil sharpener.
Hence the name of the current brand name was developed by Sharp by. Colloquially the "pencil" and calling it widely established, in part, "pencil," "Sharp" sometimes called. The "pencil" which make sense only in Japan and South Korea, generally in the English-speaking American English: mechanical pencil (mechanical pencil) or British English: propelling pencil (Puroperinpenshiru), he said, and "graphite writing instruments using generic core "and lumped together in English: pencil (pencil) may say.