SHARPENING THE PENCIL
Lead of a pencil should always be kept sharp, only a sharp lead is capable of
producing clean black lines that sparkle with clarity. For wooden pencils, lead is
opened approxiately 1/2" in length and then required shape of is made over
sandpaper pad. For cone-shaped lead, pencil is rotated in hand while sharpening and a
very fine cone is made having at least 3/8" length and ending in a perfect wedge point.
For chisel-shaped pencil, grinding of lead is done from the two opposite side and for the
lead to be used in compass, grinding is done from one side.
