There are different types of blades and knives, all commonly used for different purposes. Typically, each type of blade is a poor substitute for another. This may have something to do with the different blade quality or design. There are exceptions and examples of multi-purpose blades here and there. You should note that when it comes to versatile, multi-purpose blades, you really can't do better than this rotary cutter. Where most cutters only have one or at most two blades, this cutter has five blades! Therefore, its high efficiency and versatility should come as no surprise.
This rotary cutter can be used by seamstresses to cut fabrics and by quilters as a quilt cutting tool. It can also be used to cut paper, cardboard, vinyl, leather, tarps, upholstery, fleece, felt and even plastic!