Oscillating blade one fit universal anchor to ensure proper fit on every oscillating too. The coarse tooth saw blade has larger teeth for aggressive cutting. It is designed for cutting wood, drywall and other soft material. this blade will cut through a few nails but is mainly used for softer applications. Almost as fast as a reciprocating saw, they can be used for cutting under the kick plate when installing new kitchen flooring, undercutting door jambs or flush cutting tongue-and-groove. Flush-cut design to allow the operator to lay the blades flat on surfaces perpendicular to the cut.