The Ryobi 20 PC. All Purpose Jigsaw Saw Blade Set is a versatile and high-quality set of jigsaw blades designed for cutting various materials such as wood, plastic, and metal. Made of bi-metal with high carbon steel, these T-shank blades feature a variety of teeth per inch to ensure efficient and precise cutting. With a universal shank size, these blades are compatible with a wide range of jigsaw tools, making them a convenient and essential addition to any workshop or tool collection.