Versa Tool SB5I 80mm HSS Semi-Circular Multi-Tool Saw Blades 5/Pack Fits Fein Multimaster, Rockwell, Sonicrafter, Makita Oscillating Tools.Made from high speed steel, the 80mm wood and metal cutting blade is ideal for making precise cuts in nail embedded wood, drywall and plaster material. Applications include cutting openings in flooring for venting, repairing damaged flooring and cutting openings for electrical boxes. The blade can also be used for cutting metal materials such as copper, tin, aluminum and nails.