R220.44 is ideal for machining cast iron when an extremely high metal removal rate, as well as extensive tool life, is a requirement Together with slim cutter body design and super close pitch, these cutters are state of ......R220.44 is ideal for machining cast iron when an extremely high metal removal rate, as well as extensive tool life, is a requirement Together with slim cutter body design and super close pitch, these cutters are state of the art when it comes to productivity (used, for example, in transfer lines).