T-Square (Drawing Tool)

A T-square is a drawing tool used primarily on drafting tables to create accurate, straight horizontal lines. It consists of a long, flat ruler fixed perpendicularly to a shorter crossbar, forming a T shape. By sliding along the edge of the drawing surface and pressing the crossbar against the edge, it ensures precise alignment and consistent line work. T-squares are essential in technical drawing, architecture, and engineering for maintaining accuracy and producing neat, parallel, and perpendicular lines efficiently.