ALVIN Mini Aluminum Engineer Triangular Scale Ruler Drawing and Design Tool for Students and Professionals Great for Drafting Architecture Engineering and Art 4 Inches

Pocketsized this professional miniature scale ruler is 4 inches long stay equipped for your engineering or architectural projects wherever and whenever you need Durable material constructed of solid aluminum this triangular scale is made lightweight and longlasting so you can use it for many projects to come Calibration all engineer scales have the following graduations unless otherwise noted 10 20 30 40 50 60 parts to the inch Compact storage each triangular scale is packaged in a hard plastic case for convenient storage and easy transport A professionals choice alvin has been the professionals choice for drafting tools and drawing supplies for over half a century since 1950 we have brought quality and value to our customers.