A carpenter's pencil is an absolutely essential tool for every professional. Why are these pencils oval-shaped?

Answer All of the above.

As the old carpenter's adage goes, “Measure twice, cut once.” Enter the invaluable carpenter's pencil. While the narrow edge of the lead produces thin lines for high precision markings (that are also easier to erase), a quick quarter degree turn to the fat edge yields lines thick enough to mark rough surfaces like concrete and stone.

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