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  2. Mechanical pencil - Wikipedia

    en.wikipedia.org/wiki/Mechanical_pencil

    A typical construction of a ratchet-based mechanical pencil. A mechanical pencil or clutch pencil is a pencil with a replaceable and mechanically extendable solid pigment core called a "lead" / ˈ l ɛ d /. The lead, often made of graphite, is not bonded to the outer casing, and the user can mechanically extend it as its point is worn away from ...

  3. Pencil milling - Wikipedia

    en.wikipedia.org/wiki/Pencil_milling

    Pencil milling is a cleanup toolpath generated by computer-aided manufacturing (CAM) programs to machine internal corners and fillets with smaller radius tools to remove the remaining material that are inaccessible with larger tools used for previous roughing, semi-finishing, and finishing toolpaths. The name comes from the way that a pencil ...

  4. File:Mechanical Pencil Diagram.svg - Wikipedia

    en.wikipedia.org/wiki/File:Mechanical_Pencil...

    You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.

  5. Pencil - Wikipedia

    en.wikipedia.org/wiki/Pencil

    A pencil (/ ˈ p ɛ n s ə l / ⓘ) is a writing or drawing implement with a solid pigment core in a protective casing that reduces the risk of core breakage and keeps it from marking the user's hand. Pencils create marks by physical abrasion, leaving a trail of solid core material that adheres to a sheet of paper or other surface.

  6. Colored pencil - Wikipedia

    en.wikipedia.org/wiki/Colored_pencil

    A variety of colored pencils. A colored pencil (American English), coloured pencil (Commonwealth English), [1] colour pencil (Indian English), map pencil, [2] pencil crayon, or coloured/colouring lead (Canadian English, Newfoundland English) is a type of pencil constructed of a narrow, pigmented core encased in a wooden cylindrical case.

  7. Lead pencil - Wikipedia

    en.wikipedia.org/wiki/Lead_pencil

    Lead pencil may refer to: Pencil , a writing implement or art medium usually constructed of a narrow, solid pigment core inside a protective casing Mechanical pencil , a pencil with mechanically extendable solid pigment core called a lead

  8. Pencil extender - Wikipedia

    en.wikipedia.org/wiki/Pencil_extender

    A pencil extender (or pencil lengthener) is a small instrument (made out of metal or wood) allowing to extend small pencils, in order to facilitate their use. [1]

  9. Clutch control - Wikipedia

    en.wikipedia.org/wiki/Clutch_control

    Clutch control is the controlling of the speed of a manual transmission vehicle by partially engaging the clutch plate, using the clutch pedal instead of (or in conjunction with) the accelerator pedal. The purpose of a clutch is in part to allow such control; in particular, a clutch provides transfer of torque between shafts spinning at ...