The Starrett 610N 12in Rigid Steel Narrow Rule is a high-quality precision tool designed for metalworking inspection and measurement. With a sturdy steel construction and precise No. 10 graduation style in 32nds and 64ths, this rule is ideal for CNC machining, metalworking, and manufacturing applications. The 12-inch length provides ample measurement range, making it a reliable tool for accurate measurements in a variety of industrial settings. Starrett's reputation for quality and precision ensures that this rule is a valuable asset for professionals in the business and industrial sectors.