A heavy-duty cutter, equipped with five extra knives, is a robust cutting tool designed for demanding tasks. The cutter features a durable construction, typically with a sturdy handle and a sharp, replaceable blade. Its heavy-duty design enables it to effortlessly cut through various materials, such as cardboard, plastic, leather, and more. The inclusion of five extra knives ensures prolonged usage and convenience, reducing downtime for blade replacements. This type of cutter is commonly employed in industrial settings, workshops, and construction sites where precision cutting is essential. The extra knives provide a cost-effective solution for users who frequently engage in heavy cutting work, enhancing the tool's longevity and efficiency in demanding applications.