The Mechanical Drawing Tools ClipArt gallery offers 107 illustrations of tools commonly used in mechanical drawing such as dividers, drawing boards, pencils, scales, triangles and t-squares.

A ruling pen with hook for easy cleaning. Ruling pens are useful in drawing with ink.

A pencil case or pencil box is a container used to carry pencils. A pencil case can also contain a variety…

The wood is cut away so that about 1/4 or 1/2 inch of lead projects. The lead can then be sharpened.

The lead can be sharpened to a chisel edge by rubbing it against a bit of sand paper or a fine file,…

Pencils are the basic tool for mechanical drawing. Pencilling is the first basic skill in mechanical…

To draw a straight line, the pen must be perpendicular with the straight edge ruler, as shown in A.…

The protractor, an instrument for laying off and measuring angles, is made of steel, brass, horn or…

Sometimes built into a compass, this instrument allows you to determine and measure angles in degrees…

A 6 inches diameter protractor to measure angles to half degrees, made of brass or German silver. They…

A straightedged strip, as of wood or metal, for drawing straight lines and measuring lengths.

The flat scales are more convenient than the scales on the stick due to the delay in finding the correct…

Different ruler shapes for different scales. The triangle shape, lettered A, is commonly used in Engineer's…

The triangle scale has six surfaces for different graduations, and the scales are arranged so that the…

"This distance should be thought of not as three inches but as a foot divided into inches and eighths…

"A draftsman's instrument for ruling parallel lines. It consists of a triangle so attached to a straight-edge…

The image shows surveying done using a sketching screen, which is valued by beginning surveyors.

This folding square is also known as a t-square which is a technical instrument, primarily a guide for…

An illustration of enlarging an image by using squares. This proportion method is done by using squares…

"Where the square has a fast and a loose head, the blade should be mortised into the fixed one and the…

A front and side view of a t square with rectangular head. The t square is used draw straight lines…

"To enable the drawing of long parallel, the head must have been a long contact surface with the edge…

"Where the head is movable, the pivot should be quit large, and the hole in which it plays be bushed…

An adjustable T-square to create straight lines at different angles with a ruler attached to the head.

A T-shaped ruler, used primarily in mechanical drawing, having a short crosspiece that slides along…

An English T-square for drawing straight lines. The narrowing of the bottom blade makes the T-square…

A long fixed head T-square for drawing straight lines. The head shape of the T-square allows for drawing…

A regular fixed head T-square for drawing straight lines. The blade must be perfectly straight in order…

T—squares can be temporarily adjusted by putting the thumb tack in the head as illustrated. This…

A test to ensure the triangle is accurate by drawing a perpendicular line from a T-square.

The Rondinella triangle is a modified triangle ruler, where the hypotenuse is outwardly bent.

The Zange triangle is a modified triangle ruler, where one of the legs is longer making the hypotenuse…

The Kelsey triangle is a modified triangle ruler, where the hypotenuse is inwardly bent.

Sharpen the the pencil by removing the wood with a penknife and rubbing the lead on sand paper. The…