Features and Benefits:•15 pc. Assorted utility blade set•10 General purpose blades, 2 hook blades, and 3 carton blades•Storage case included•General purpose blade lasts 5X longer•Hook blade is up to 2X stronger•Hook blade is ideal for roofing•Carton blade lasts 5X longer•Carton blade is ideal for cartons•Fits all utility knivesMilwaukee® General purpose utility blades are designed to maximize cutting performance and durability in most common jobsite materials. Milwaukee® Hook blades are designed to cut roofing, synthetic wrap, insulation and other building materials. Milwaukee® Carton utility blades are designed to minimize risk of cutting injury and protect contents in cartons and packaged goods. Milwaukee utility blades are engineered to fit Milwaukee and most standard utility knives.