Definition
A T-square is a drafting tool used to draw horizontal lines on a drafting table or to align paper. It consists of a long blade and a shorter, perpendicular head. The head is placed against the edge of the drawing board, allowing the blade to slide and create consistent horizontal lines. Unlike a ruler, it's primarily used for drawing and alignment rather than measuring. Think of it like a level for lines, ensuring everything is straight and parallel. 📐 T-squares are essential for architects, engineers, and designers. It guarantees lines are perfectly horizontal.