This All in One, folding utility knife is perfect for cutting multiple surfaces, including metal, PVC, drywall, wood and much more. Blade locking system allows for 4 different blade types to be used. Blade locks in place for safe use. The Knife Set Includes: lightweight aluminum folding knife handle, 10 replacement standard utility blades, 3 saw blades, and a convenient zipper bag storage case. Designed for Long-Term Comfort, Portability, and Safety.