The Rule, Brown & Sharpe 599-312-604 Satin Finish Machinist's 6" Steel Rule / Scale is a high-quality precision tool used in metalworking inspection and measurement. 1/64", 1/32", 1/16", & 1/8"increments. Manufactured by Brown & Sharpe in the United States, this rule is a reliable and accurate gauge for machinists and other industrial professionals. With its durable satin finish and precise measurements, this rule is essential for ensuring accurate results in a variety of manufacturing and industrial applications.