Specially designed for work on cast iron, CAST CUT Burs combine high stock removal rate with smooth milling action that minimizes noise and vibration. Burs offer cutting speed in 1,500–2,500 sfpm range with rotational speed of 12,000–20,000 rpm. Available in 5 standard SCTI shapes with shank diameter of ¼ in., energy-efficient burs deliver aggressive cutting action that results in large chips and optimized chip removal.