Isometric drawings have equal foreshortening along each of the three axis directions.

An isometric drawing is about 50% smaller than the isometric projection.

Parallel partial ellipses equally spaced at the symbolic thread pitch can be used to represent screw threads.

Isometric drawings, unlike isometric projections, are drawn using the full length measurements of the actual drawing and lack foreshortening.

Dimetric drawings have different foreshortening along all three axis directions.