This manual seaming tool for sheet metal is specifically designed for duct bending tasks in HVAC projects. Its precision seamer features cast jaws marked in ¼ in. bending increments for accurate bending. The tool boasts a non-slip pitted handle for maximum power and a comfortable operating range, along with a safety lock and hanging hole for easy carrying and storage. Constructed with heavy-duty all-steel and finished with nickel plating, it ensures durability. It is ideal for construction projects, capable of folding 18-gauge galvanized steel, 30-gauge cold-rolled steel, and 30-gauge stainless steel without the need for heavy power tools for bending, stitching, and flattening. Safety tip: Always wear gloves when working with this tool.