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 * =Table of contents = ||
 * < =Introduction = ||
 * < =Evolution = ||
 * < =Steps to be made = ||
 * < =Shape = ||
 * < =Gradation = ||
 * = Sharpening the lead = ||

INTRODUCTION Pencil is one of the major writing tools which was invented about 400 years ago. It has been evolved over time by the technologies and human itself. Let’s see how the pencils are being part of our significant tools in our life now; also comparing with how it was once.



EVOLUTION Nowadays pencils are produced by machines easily and made in the beautiful hexagonal shape but there has been a big evolution in long time period of time from a solid of lead which was being scrubbed on skins of animals and etc. Later on, a wood was rolled up onto the lead using an alloy made of lead and tin. In ancient time, leads were made of stylus which is a thin metal rod. Other leads were made of lead. Today lead is still called lead, but it’s actually made of graphite.

STEPS TO BE MADE In factories, there are some steps to be taken until our pencils are made. First, three materials, graphite, water and clay are kneaded by particular proportion depends on how deep the color is supposed to be, and made into thin long cylinder by machine. Then the lead is fired and hardened. Finally, the lead is put into a special oil to make it easy to write. The wooden part of pencil is made of a board which is cut into a half hexagon. The middle is cut out to dent and the lead is placed there with glue. The same shaped board is placed onto that and it will go to other factories to print letters/pictures. The typical pencil can draw a line 35 miles long.