Traditional wooden "T" squares ideal for technical drawing often used by draftsmen primarily as a guide for drawing horizontal lines on a drafting table. It may also guide a set square to draw vertical or diagonal lines.
You may also like...
Linex College 60° Set Square. A tinted transparent 60°set square with a graduated scale.
Blundell Harling Angle-line 12" Adjustable Set SquareAn inexpensive adjustable drawing square made to the same standards of accuracy as the most expensive models.
A tinted transparent 45°set square with a graduated scale. Size :- 360mm
Unique Acrylic Set Squares, professional set squares are made from a 2.5mm thick Acrylic.