Our 15 Piece Utility Blade Set is designed to maximize your cutting performance and blade durability in most common job site materials. Our hook utility blades are up to 2X stronger and allow you to easily cut roofing, synthetic wrap, insulation, and other building materials. Our carton utility blades last 5X longer and are designed to minimize your risk of cutting injury while protecting the contents in cartons, boxes, and packaged goods. MILWAUKEE® utility knife blades are engineered to fit all Milwaukee and most standard utility knives. The set includes 10 general purpose blades, 3 carton blades, two hook blades, and a blade case.