Multipurpose Spiral Saw Bit, Drill Bit Diameter 1/4 in, Max. Speed 33,000 RPM, Shank Diameter 1/4 in, Overall Length 2 1/2 in, Bit Application Cement Board, Plaster, Primary Material Application Cement Board, Plaster, Material Carbide, Tip Style Cutting, Flute Length 1 in, Cutting Direction Right Hand, Number of Flutes 1, Cutting Depth 1 in, Tool Brand Rotozip