0.5 Lead Pencill Mechanism is a mechanical system that holds a cylindrical, thin graphite "lead" and dispenses it as required through a mechanical process. The mechanism is normally housed in a cylindrical plastic or metal casing and is designed to be inserted into a pencil body. Whenever the user clicks the end of the pencil, a small clutch mechanism spreads the lead an accurate distance that allow for precise and consistent writing or drawing. 0.5 lead diameter produces a fine line that is ideal for technical drawings, sketching, and various other detailed works. The 0.5 Lead Pencill Mechanism is refillable and can be replaced as needed that makes it an economical and durable alternative to traditional wooden pencils.