This utility knife is 3 knives in one! It has a box cutter(marks & cut lines, trims plastic or wood, cuts tape, cord, strapping, cardboard, or other packaging materials,) a serrated blade(high pressure hard cutting & sawing.) Cuts tougher material (like rope or wood,) tanto blade(tactical tip designed for puncturing.) Holds up to tough materials without breaking. Use for day-to-day tasks & defensive applications.Blade Lengths:Box Cutter: 1.25"Serrated Blade: 3"Tanto Blade: 3"