DOT Die Set Hand Tool 22-RHTNS-1RR is a manual grommet installation tool designed for secure fastening of #1 stainless steel rolled rim grommets with spur washers. Ideal for marine-grade, corrosion-resistant projects, it works with pre-punched holes in materials such as canvas, vinyl, industrial fabrics, leather, and tarps. This stainless steel grommet die hand set features durable construction and includes upper and lower die components, requiring a separate mallet or hammer for operation. Its strong and reliable design suits outdoor and industrial textiles, making it practical for enhancing patios and outdoor living spaces without complex installation steps.