The term 'Blue Print Detail' is a job description for a SPEC, which stands for Specification Technician. A Specification Technician is responsible for creating detailed blueprints and specifications for products or services. They must have a strong understanding of engineering principles and be able to interpret customer requirements. They must also be able to create accurate drawings and diagrams that can be used to manufacture the product or service. The Specification Technician must also be able to review and revise existing blueprints and specifications as needed.