What kind of line ties notes or specifications to a particular feature in a drawing?

A leader line is specifically designed to connect notes or specifications to a particular feature in a drawing. This type of line typically has an arrow at one end that points to the feature it references and is often accompanied by a text label that provides important information about that feature. Leader lines are essential in technical drawings because they help clarify which information pertains to which part of the drawing, ensuring that anyone interpreting the plans can understand the relationship between the notes and the graphical representation of the object.

In contrast, phantom lines are used to indicate alternate positions of an object or to represent features that are not part of the main object. Dimension lines are utilized to measure distances between features and indicate size, often accompanied by numerical values. Construction lines are temporary lines used to aid in the drawing process, typically for layout, and they do not convey specific information or specifications like leader lines do.