1-1/8 in. Bi-Metal Multi-Tool Plunge Blade This multi tool blade works with your multifunction power tool for making fast, clean plunge cuts. Aggressive teeth make high speed cuts in aluminum, copper pipe, brass, nails, wood, drywall and plastic and the bi-metal blade material can even cut metal. The thin blade is great for detail work and is designed with a universal arbor that fits Chicago Electric, Bosch, Craftsman, Dremel, Rockwell and Fein MultiMaster tools. Features: 1.Aggressive teeth make high speed cuts in aluminum, copper pipe, brass, nails, wood, drywall, and plastic 2.For fast, clean plunge cuts 3. Thin blade is great for detail work