What is the purpose of a Leader Line in technical drawing?

The purpose of a Leader Line in technical drawing is primarily to indicate dimensions of arcs, circles, and details. Leader Lines are used to connect specific notes or labels to their corresponding features on a drawing, enhancing clarity and precision. This is essential in engineering design, as it allows engineers and designers to communicate critical information about dimensions and specifications directly alongside the relevant graphical representation.

Utilizing Leader Lines helps prevent confusion by clearly associating text annotations with specific elements in the drawing, which is important for ensuring that fabrication and construction processes are carried out correctly. Since accurate dimensions are essential in engineering design, the effective use of Leader Lines aids in achieving this objective.