Bosch 1/2-in Solid Carbide Downcut Spiral Router BitFor through cutting where downward pressure and chip removal is desired For high duty cycle applications Balanced cutting with minimal vibration Solid carbide for durability Recommended for CNC or router table use Features Bit Style Downcut spiral Number of Flutes 2 Overall Diameter 1 2 in Cutting Edge Length 1 5 8 in Bit Shank Diameter 1 2 in Overall Length (Inches) 3. 5 Warranty None Sub Brand N A CA Residents: Prop 65 Warning(s) No Bit Material