This IVY Classic Hinge-Loc utility knife is about to become your new favorite tool in the workshop, job site, or around the house! The innovative Hinge-Loc system lets you change blades in seconds - just twist the knob and the knife opens while staying hinged at the back, so you never lose parts or struggle with complicated mechanisms. The double interlocking design holds the blade securely without any slipping or wobbling, giving you clean, precise cuts every time. Built with all-metal aluminum die-cast construction, this knife feels substantial in your hand and can handle serious abuse without breaking. The internal magnet automatically positions new blades perfectly for effortless changes, and it works with .025 inch thick IVY Classic blades (11172 and 11178) as well as other heavy-duty utility blades. Whether you're cutting drywall, roofing materials, linoleum, carpet, vinyl, or opening boxes, this versatile tool delivers professional results with comfort and control. The balanced weight and comfortable grip make extended use easy on your hands, while the durable construction means this will be the last utility knife you need to buy for years to come. From DIY home renovations to professional contracting work, the Hinge-Loc system revolutionizes what a utility knife can be - no more fumbling with tiny screws or dangerous exposed blades during changes!