Oscillating Tool Blade, Blade Type Precision , Connection Style Universal Open-Back, Blade Material High Carbon Steel, Blade Width 2 1/2 in, Blade Length 4 1/4 in, Overall Length 4 1/4 in, Style Fine , Cutting Edge Style Toothed Edge, Edge Material High Carbon Steel, Direct Fit For Tool Brand Bosch, Craftsman, Fein, Rigid, Rockwell, Number of Pieces 1