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Why do pencils take 0.7 lead?

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Anonymous

16y ago
Updated: 8/17/2019

Because that is the size in milimeters that some mastermind somewhere in the world decided was PERFECT for pencils

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Wiki User

16y ago

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Related Questions

What year did they take the lead out pencils?

The United States began phasing out lead in pencils in the late 19th century, with significant changes occurring in the 1970s. The term "lead" in pencils actually refers to a mixture of graphite and clay, not actual lead. However, concerns about lead poisoning led to the regulation of lead in various products, including pencils, leading to the widespread use of safer materials. By the 1970s, most pencils were already free from harmful lead content.


What is graphite used in?

pencils such as lead pencils


What are lead pencils made out of?

The lead in pencils are not made out of lead, as is common belief. Pencil lead is made out of graphite.


What year was lead removed from pencils?

Lead was never actually used in pencils. The "lead" in pencils is actually a mix of graphite and clay. The switch to using graphite in pencils occurred in the 16th century.


What are legal issues with pencils?

pencils contain lead. lead is dangerous for humans. many students put pencils in there mouth and can lead to lead poisoning. This can bring lawsuits against companies for negligence as the companies know the pencils contain lead which is toxic.


Is lead mostly used in pencils?

Lead is mainly used for pencils and for batteries.Hope this helped :)


What are some unusual uses of lead?

in pencils in pencils


How can you tell from a graphite or lead pencil?

Graphite pencils typically have a matte finish, while lead pencils have a shiny appearance. Additionally, graphite pencils produce darker markings compared to lead pencils of the same grade.


Is lead used in pencils?

Lead is not used in pencils. Instead, pencils contain graphite, which is a crystalline form of carbon that leaves a gray mark on paper when used. The term "lead pencil" is a misnomer that dates back to when graphite was mistaken for a form of lead.


Is lead found in pencils?

Not in modern pencils. They contain graphite.


Do they use lead or graphite for mechanical pencils?

Mechanical pencils, like the regular kind of pencils, use graphite.


Which pencil lead is thinner 05 or 07?

Owning both 05 and 07, 05 is thinner. It is more prone to breaking. I have resorted to purchasing only .07 mechanical pencils. And my wife recently brought me a box of mark sense lead, that is only about 2 inches long, but appears to be .144 lead - it does appear twice as thick as .07 - now if only I can find a pencil that uses it!