Features and Benefits:�2X Stronger than standard carbon hook blades - replace fewer blades�High quality steel for maximum strength in pull cut applications�Optimized grind angles deliver improved sharpness for less repeat cuts�Ideal for roofing, carpet, Tyvek®, insulation and other building materialsMilwaukee® Hook blades are designed to cut roofing, synthetic wrap, insulation and other building materials. Milwaukee utility blades are engineered to fit Milwaukee and most standard utility knives.