TRIANGULAR SCALE - Measures 12 inches. For architect, engineer, and mechanical draftsman graduations.
MEASUREMENT MADE EASY - Sharp, easy-to-read graduations resist wear. English and metric.
HOLLOW TRIANGULAR SCALE - All architect scales have the following graduations unless otherwise noted: 3/32, 3/16, 1/8, 1/4, 1/2, 1, 3/8, 3/4, 1?, 3 to the foot; one edge to 16ths.
DURABLE MATERIAL - Constructed of solid aluminum for light weight and durability.
A PROFESSIONAL'S CHOICE - Alvin has been the professional's choice for drafting tools and drawing supplies for over half a century. Since 1950, we have brought quality and value to our customers. Our tools help bridge the gap between ideas and innovations. We are known for our wide selection of high quality tools at a fair price.
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