A T-Square is a drafting tool used primarily in technical drawing and design. It consists of a long, straight edge with a shorter perpendicular arm, resembling the letter "T." This tool helps ensure precise measurements and straight lines, making it essential for architects, engineers, and designers when creating plans and blueprints. In addition to its use in drafting, the T-Square is also valuable in various artistic applications, such as graphic design and illustration. By providing a stable reference point, it allows artists to maintain accuracy and consistency in their work, enhancing the overall quality of their designs.