The STARRETT No. C604RE-6 is a 6" long spring-tempered steel rule with inch gradations. Made by the reputable brand Starrett in the United States, this rigid rule is crafted from durable tempered steel material. The 4R graduation style ensures accurate measurements for metalworking inspection and measurement tasks. Ideal for precision and quality in industrial and manufacturing settings, this rule is a reliable tool for professionals in the CNC and metalworking industry.