Durable - It is made to last with quality materials that withstand wear and pressure. It is spring-tempered with a regular steel finish and graduations at 8ths, 16ths, quick-reading 32nds, and 64ths. Scale Graduations for Enhanced Precision - The Starrett Steel Rule is available in English and Metric graduations for better performance and user convenience, as both systems are provided on a single rule. Wide Variation of Sizes - The Starrett rule is the basic measuring tool from which many other tools have been developed. It is offered in multiple sizes, from as small as a one-quarter inch to as much as twelve feet in length for large work. Accuracy You Can Count On - Starrett precision measuring tools exceed accuracy and performance requirements of national and international standards, providing excellent fine precision tools for industrial, professional and consumer markets worldwide. The Standard for Excellence - Proudly made in the USA, Starrett combines over 140 years of American heritage and innovation with globally sourced materials to deliver exceptional quality tools and products.