The Starrett 1604R-6 6" Stainless Steel Rule is a rigid rule with a 4R graduation style, designed for precision in metalworking and inspection tasks. Made in the United States, this high-quality rule is crafted from durable stainless steel, ensuring longevity and accuracy in measuring. The 6-inch length makes it ideal for a variety of applications, making it a valuable tool for professionals in the CNC, metalworking, and manufacturing industries. With the renowned Starrett brand and precise craftsmanship, this rule is a reliable and essential tool for precise measurements. Box not included