MECHANICALPENCIL
Mechanical pencil
A mechanical pencil or a propelling pencil or a pen pencil is a pencil with a replaceable and mechanically extendable solid pigment core called a lead . The lead is not bonded to the outer casing and can be extended as its point is worn away. The lead is actually made of graphite or a solid pigment.The above text is a snippet from Wikipedia: Mechanical pencil
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mechanical pencil
Noun
- A pencil with a replaceable and mechanically extendable lead that wears away with use, designed to provide lines of constant thickness without requiring sharpening and typically features a small eraser at the end opposite the tip.
The above text is a snippet from Wiktionary: mechanical pencil
and as such is available under the Creative Commons Attribution/Share-Alike License.