The Alvin 240BP Series Black Plastic Engineer Triangular Scale is a professional-quality scale. With its high-impact plastic material, it is durable and ensures long-lasting service. It features black, non-glare matte faces and tapered edges for accurate drawing.
With its length of 12 inches, this black plastic engineer triangular scale provides machine-engraved white graduations in 10, 20, 30, 40, 50, and 60 parts to the inch. Its furrows are color-coded to allow easy and quick recognition of its numerous scales. The Alvin 240BP Series Black Plastic Engineer Triangular Scale comes in a hard plastic case.