Fisch FSA-330165 1-1/16-Inch Diameter by 3/8-Inch Wave Cutter Forstner Bit Clean, precise pocket holes and skip free clean cutting edge CNC-Diamond ground and centrally ground center point Drop Forged from tool steel, for superior sharp edge retention High performance design with center point, 2 cutters, 2 spurs and reduced cylindrical shank Drill up to 300 holes before re-sharpening is required. Verified by independent test results