GraphGear 500 Mechanical Pencil

This is the smoothest and most accurate pencil to use for writing on paper and drafting. Gaius Hennin especially loves it when writing out long math equations because they create exceptionally crisp lines. Select your pencil based on the size of lead you prefer, if you are heavy handed stick with 0.7 or 0.9 mm but if you write with a feather-light touch you will be thrilled with that super-fine 0.3 mm lead.