The product is a set of vintage Starrett & Sawyer machinist steel rule clamps, which are high-quality tools used for metalworking inspection and measurement. Made in the United States from tempered steel, these clamps are durable and accurate for precise measurements in CNC, metalworking, and manufacturing processes. Perfect for professionals in the industrial sector, these clamps represent the craftsmanship and reliability of American-made tools. Ideal for those seeking precision and reliability in their work, these steel rule clamps are a valuable addition to any workshop or manufacturing facility.