drawing pencil
This is one of the most important tools in drawing. It comes in various grades. The grade of pencil to be used depends on the quality of paper to be used.
HARD PENCILS
are used where extreme accuracy is required especially working on graphs, diagrams and charts.
MEDIUM PENCILS - are used for general purpose work in drawing.
SOFT PENCILS are too soft to be used in mechanical drafting. They are very useful for art work of various kinds.