It is necessary to use erasing tools in properly preparing and correcting drawings. The eraser is used to remove preliminary or unwanted lines. An erasing shield is used to remove a line that is close to other lines on the drawing that are not being removed. The shield protects the good lines. The drafting duster is used to remove eraser and lead dust from a drawing. Electric erasers are extremely useful for extensive drafting.
Types of erasers and their uses:
Pink Pearl: Soft, flexible all purpose eraser that cleans as it erases. The most commonly used eraser.
White Plastic (Vinyl): Used on tracing cloth, film or paper. Either hard or extremely soft. Commonly used when drafting.
Art Gum: Crumbles as it is used and is free of grease and cannot scratch. Used to remove pencil marks from inked art.
Kneaded Eraser: Used for pencil, chalk, pastel and charcoal. Can be shaped to any convenient form. Non-abrasive.