Milwaukee Serrated Blade Insulation Knife is designed to maintain edge retention for long-lasting sharpness. Crafted with a stainless steel blade, it efficiently cuts through mechanical and HVAC insulation without dulling. The knife features a full metal tang, providing durability for tough cutting tasks, and a rounded handle that ensures smooth handling during tape and adhesive laps. For added safety and convenience, it includes a blade cover for protection and secure storage. Model Number: 48-22-1922