Rugged, professional-quality scales are made from anodized aluminum with a solid core. Printed black graduations on non-glare finish and color-coded furrows. Available in English and metric. Sold individually, shrink-wrapped.
All engineer scales have the following graduations unless otherwise noted: 10, 20, 30, 40, 50, 60 parts to the inch.
Related to: Scales - Architectural, Engineering, MIsc.