From Olson Saw Company -- Manufacturing in America since 1918. These blades are especially designed for detailed woodworking, furniture making, and DIY home improvements. Specializing in clean, curved cuts, some applications include wooden signs, detailed wall art, furniture with curved elements, and cutting out patterns or shapes in wood panels. Extra sharp V-Tooth shape. T-shank, the most widely used type of jig saw blade. Provides a strong hold, which results in more precise cuts. Blade material: 50CRV Steel Packaged in paper.