set squares
Triangular drafting instruments
Set squares are flat triangular tools used in technical drawing and drafting, typically made of transparent plastic with precise angles—usually 45-45-90 or 30-60-90 degrees.
They guide straight lines and ensure accurate angles when paired with a T-square or ruler.
She used set squares to draft the architectural plans.
- drafting tableInclined desk for sketching
- rulerOne who governs
- triangleThree-sided plane figure
- drawingMarks forming a picture
- graph paperPre-gridded drawing sheets
perpendicularity · instrument · geometry · straightedge · measurement · parallelism · engineering drawing · tracing paper · precision instrument · layout · drafting tools · stencil · technical pen · French curve · mechanical pencil · design templates · pantograph · right angle