Champion RotoBrute Tungsten Carbide Tipped Annular Cutters maximizes the power and cutting performance of any portable or stationary drill press. Ultra hard carbide teeth permit faster cutting even in tough materials and shapes and cuts clean, bur free holes Precision pilot pins eject the center as a plug of steel Cuts cast iron, steel and ultra hard or exotic alloys, stainless steel and aluminum Champion RotoBrute Tungsten Carbide Tipped Annular Cutters superior “Triple Edge” cutting action outperforms ordinary HSS annular cutters and twist drills 6:1

From the Manufacturer RotoBrute Tungsten Carbide Tipped Annular Cutters maximizes the power and cutting performance of any portable magnetic drill press. Their superior “Triple Edge” cutting action outperforms ordinary HSS annular cutters and twist drills 6:1. This unique system balances the cutting forces enabling higher feed rates and smoother drilling, even producing overlapping holes.