What purpose do callouts serve on a print?

Callouts on a print are specifically designed to communicate detailed specifications about individual features of a part. These annotations provide essential information, such as tolerances, surface finishes, and material specifications, ensuring that anyone interpreting the print understands the precise requirements for manufacturing the part. This level of detail is crucial for producing accurate and functional components that meet the intended design criteria.

While overall dimensions are important, callouts go beyond just indicating size; they encompass unique features and characteristics essential for fabrication. Aesthetic design elements and assembly instructions are important aspects of a print but are not the primary function of callouts. Instead, callouts focus on the technical specifics that inform the manufacturing process.