Drafting & Design Technology Unit 2 Basic Drafting Tools Drafting & Design Technology Unit 2

Compass Used to draw circles and arcs

Divider Used to transfer dimensions

Drafting Tape A specially-prepared tape used to adhere drawing media to the working surface

Dusting Brush Used to brush loose graphite and eraser dust from a drawing

Eraser Used to remove pencil lines and graphite smudges from a drawing

Erasing Shield A metal plate with various slots and openings used to protect line work when a portion of the drawing is to be erased

Irregular Curve Used to lay out any noncircular curve

Lead Pointer Used for sharpening mechanical pencil leads

Lettering Guide Used to lay out guidelines for lettering

Mechanical Pencil (Lead Holder) Used to hold leads of various hardness's

Protractor Used to measure angles

Scale Used to measure the length of a line

Template A thin, flat, plastic tool with various size openings of different shapes used to expedite the drawing of standard features

Triangle A thin, flat, right-angled piece of plastic or metal with acute angles of 45, or 30 and 60 used for drawing vertical or inclined lines that are multiples of 15

Rules for Maintenance and Care of Drafting Tools & Equipment Keep hands and equipment clean Keep all instruments clean and dry Do no bend templates sharply Do not use templates or scales as straight edges for cutting tools Do not use templates as eraser shields Do not hit scales and triangles on edges Do not overextend compasses and dividers Clean plastic tools with soap and water only Do not stick compasses and divider points into scales and triangles Never sharpen leads over drawing or table surface