Starrett rules are made from fine quality steel and produced to the highest precision standards, making them the most accurate and readable precision steel rules available. This spring-tempered, 6 inch rigid steel rule has a satin chrome finish and comes included with a plastic sleeve to protect it in your toolbox or tool bag. It features 1/8 and 1/16 inch graduation scales on the first side, and 1/32 and 1/64 inch scales on the revise side for quick readings. Zero inch mark starts at the edge of the non-flexing, sturdy steel ruler. There are two graduation scales (1/32) on the ends of the rule to allow for measuring in tight places. Graduation scales are etched into the steel, not printed like other steel rules. Scales are permanent and won?t rub off if oil drips on it. It has a non-reflective finish to prevent glares when measuring under light. The L.S. Starrett Company manufactures precision measuring tools, metrology and testing equipment, and saw blade products. The company was founded in 1880 and is headquartered in Athol, MA.From the ManufacturerStarrett rules are made from fine quality steel and produced to the highest precision standards making them the most accurate and readable precision steel rules available.