The Arrow RT187M One-Handed Rivet Tool is the ultimate tool for any professional or serious DIY-er. This manual riveter is perfect for projects involving sheet metal, gutters, storm doors, and automotive repairs. One of the standout features of this rivet gun is its patented one-handed design, which delivers a unique ergonomic, easy, one-hand operation. The compact, lightweight rivet tool features an adjustable stroke distance for the ultimate in comfort and control. This feature means you can work for extended periods without experiencing any discomfort or fatigue. The tool features innovative thumb screw nose pieces in four different sizes, spring-loaded, and comfort-grip-molded handles with a convenient handle lock for easy storage. This means you can easily change the nose pieces to suit your specific project and store the tool safely and conveniently after use. The rivet tool's rugged all-steel construction provides a greater tool lifespan. The anti-slip handle ensures secure gripping and control while fastening, so you can be confident that your work will be of the highest quality. The RT187M works with aluminum or steel Arrow rivets (sold separately) in 1/8-Inch (for light duty jobs), 3/16-Inch (for heavy duty projects), and 5/16-Inch. Choose the right size rivets for your specific project, ensuring that your work is both efficient and effective.