Oscillating Tool Blade Set, Blade Type Fine Cutting, Connection Style Universal Open-Back, Blade Shape Circular, Straight, Blade Material Bi-Metal, Carbide, High Carbon Steel, Blade Diameter 1 1/4 in, 1 5/8 in, 2 3/4 in, 3 in, Blade Width 1 1/4 in, 1 5/8 in, 2 3/4 in, 3 in, Primary Material Application General Purpose, Materials Drywall, Metal, Wood, Style Fine , Cutting Edge Style Toothed Edge, Edge Material Bi-Metal, Carbide, High Carbon Steel