The Fein 3/8" Long-Life BiMetal Blade is ideal for cutting nails embedded in wood during long hard renovation projects. These blades will outlast all other oscillating blades even after cutting over 500 penny nails! The teeth are designed for cutting metal, wood, and plastics to be cut all day long. 3x's service life is not unexpected compared to the competition while delivering a fast straight cut. Stepped shape for sawing flush to the surface. Can be simply plunged into the material at any point, with no clearance necessary behind the workpiece. Wood teeth, bi-metal, for all wooden materials up to 1-3/16-Inch. Saw blade with high cutting speed, extremely powerful with extra-long service life. Ideal for all crafts including general contracting, flooring, tile, and bathroom renovation. Also, due to the Starlock mount, this will fit almost all oscillating tools.