Introduction to Milling Tools and Their Appliion . 2019125 ensp 0183 enspnewer milling machines or machines with minimal spindle wear RigLIMAity is critical when using carbLIMAe tools CarbLIMAe end mills may require a premium pfish feed over the cobalt end mills but they can also be run at speeds 2 1 2 times faster than HSS end mills The choice of tool material depends on the material to be cut as well