What are the parts of a pencil?

Chassis
	The body of a carpenter's pencil is usually made of wood. It differs from a regular pencil in that it is not round and its body is usually larger.
	enlarged body The larger body of a carpenter's pencil makes it stronger and less likely to break during or between uses when thrown into a toolbox or placed among heavy equipment. Its overall larger size makes it easier to work with protective gloves.
	Rectangular, oval and octagonal bodies The cross section of a carpenter's pencil can be rectangular, flat octagonal, octagonal, or oval.
	Flat octagonal or rectangular carpenter's pencils are by far the most common. These pencil shapes are preferred as they won't roll easily if placed on an uneven work surface. The disadvantage of the flat body is that it cannot be used in standard pencil sharpeners, although specialty sharpeners exist for these types of pencils.
	The oval carpenter's pencil is a fairly common shape, and perhaps a little more comfortable to handle. It has a wide flat tip, like the rectangular and flat octagonal type, which is preferred for heavy duty applications.
	The octagonal carpenter's pencil is the least common shape. This is because despite being strong, its sinker does not have the advantage of a thin and thick side, and its octagonal body shape means it is more likely than its flatter counterparts to roll off when placed on an uneven work surface.
NEWS
	The lead of a carpenter's pencil is usually much harder than that of a regular pencil. Usually has a rectangular profile.
	Tougher leadership A more durable carpenter's pencil lead means it won't break when doing heavy marking work.
	Rectangular leash The rectangular lead allows the user to sharpen the lead to a fine, flat or pointed tip. This gives the user the ability to draw thick or thin lines depending on the angle of the tip.
	The ability to draw parallel lines with a single stroke is especially useful when marking out guides before cutting.