This set of jigsaw blades is suitable for use on wood, metal, and plastic surfaces. The blades come in an assortment of types and sizes and are supplied in a convenient storage case, making it easy to keep them organized and accessible. These blades are designed to fit most popular makes of jigsaws and have a T-slot fitting, allowing for easy installation and removal. The T-slot fitting also allows for consistent, secure and accurate cutting for any application. The versatile and durable blades in this set make it ideal for a variety of cutting tasks, from rough cuts to fine detailed work.