Lead, wood, plastic
first step in pencil manufacture involves making the graphite core as the "lead". Back in the day we used lead which is toxic, the we switched to Graphite which is non-toxic.---------It is frequently...
the wooden "shell" and the lead inside
You can buy pencil lead at almost any store but since mechanical pencils are cheap u can't buy one certain part
The end of the pencil were the eraser is.