The Marson 325-RN Heavy Duty Hand Rivet Nut Tool is a high-quality, durable tool designed for setting rivet nuts. Made in the United States by Marson, this single item tool is suitable for various sizes ranging from 10-24 to 3/8-16. With its sturdy construction and precise design, this rivet setter is perfect for automotive and industrial applications requiring efficient and reliable rivet nut setting. Marson 325-RN is a trusted brand known for producing top-notch hand tools, making this tool a valuable addition to any professional's toolbox.