Durable - It is made to last with quality materials that withstand wear and pressure. It features a satin chrome finish. Graduations at mm and 1/2mm on both sides. 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 - Manufacturing quality tools that provide consistent and reliable performance since 1880, Starrett's commitment to product excellence, has earned them a reputation as one of the most trusted names in the industry.