Professional-Grade 5-Blade Precision: Engineered with 5 heat-treated carbon steel blades, this HVAC crimping tool delivers deep, uniform crimps for ductwork, downspouts, and stove pipes. Anti-rust coating ensures longevity, while the hardened construction resists wear during heavy-duty use Versatile 22-28 Gauge Capacity: Effortlessly handle stainless steel, galvanized metal, and aluminum sheets (22-28 gauge) for projects like gutter round ducts, metal pipes, and HVAC systems. Perfect for contractors tackling tight spaces or DIYers upgrading home ventilation Ergonomic Design for Fatigue-Free Use: Textured Tyregrip handles with finger guards reduce hand strain during extended projects. The integrated safety lock prevents accidental openings, and the hang hole offers easy storage in toolboxes or workshop walls High-Efficiency Operation: Achieve professional results faster with a 9-1/2" leverage handle and 1-1/4" throat depth. Depth markings (1/4" increments) guarantee co