Ebony pencil vs charcoal. Graphite pencils are made of a mixture of graphite powder and clay filler. Now that I have them, I can't imagine going back. If you are just beginning drawing, you may want to add a 2H for the lightest values in your drawing. I make liberal use of blending tools while drawing. But for this test, I wanted to do two things: Related Posts: So, the darker the tones in your drawing, the more they will reflect light and produce glare. The more binder in the graphite-to-binder mixture, the harder the pencil led will be, the thinner lines it will draw, and the lighter values it will be able to achieve.