Once it’s been thoroughly mixed with clay, it’s ready to go into production, with around 550 pounds of the stuff making up to 200,000 pencils. Explore Subscribe Newsletters Content Licensing O ...

The pencil “lead” is actually a mixture of graphite and clay. More clay in the mixture makes the lead harder. A harder lead has a higher number. Pencils are numbered from 1-3 but most people use a ...

An curved arrow pointing right. Student-grade colored pencils and professional-grade ones vary drastically not only in their price but how they're made. A set of 120 Faber-Castell Polychromos ...