Squares

The set square is typically made of clear plastic or stainless steel, and is designed to provide precise angle measurements up to 90-degree and 45-degree angles. This allows for accurate drawing of geometric shapes, making it a vital tool for any architectural, engineering or technical drawing.

A set square tool often comes in the form of a triangle ruler, which makes it easy to draw perpendicular and parallel lines, as well as creating precise angles. A T-square ruler is also a common feature of a set square, providing a straight edge for drawing horizontal lines and assisting in making precise measurements.

Set squares are also useful for carpenters and builders as they can act as angle finders and carpenter square. They are also ideal for measuring angles for framing and other construction tasks.