Heavy duty T-squares and drawing triangles for cutting. Durable aluminum and stainless steel drafting T-squares, L-squares, and triangles by Alvin, Fairgate, Lance. Professional T-squares, L-squares, and triangles available in several popular sizes. Perfect for graphic and commercial artists, architects, drafters, designers, sign makers, picture framers, quilters, printers, more. Check our selection of quality drafting triangles and T-squares.