Fein 1-3/4 X 2-1/4 In. Universal Saw Blades, 3 Pack are crafted from durable Bi-Metal with wavy teeth, designed to handle a broad range of cutting tasks. These blades are for working with sheet metal up to 5/64 inch (2 mm), aluminum profiles, copper pipes, wood, drywall, and various plastics. Their medium width and waisted shape provide optimal cutting speed while ensuring efficient swarf removal, making them a versatile and reliable choice for many applications. Model Number: 63502223270