The Teledyne Post 38CT-580 Drafting Engineering Triangle Ruler is a classic precision drafting tool designed for engineers, draftsmen, designers, and students. Built for accurate technical drawing and layout work, this triangular scale ruler features durable transparent construction for clear visibility over drawings and plans, along with a protective clear storage case for convenient transport and protection.

Ideal for engineering calculations, drafting, blueprint reading, and technical sketching, the 38CT-580 delivers dependable measuring performance in both professional and educational environments. Its lightweight triangular design allows quick access to multiple scales while maintaining a comfortable grip during extended use.