Metalworking machine tools; metalworking machines; cutting tools for machinery, namely, machine tools for the cutting and forming of metal; power operated metalworking machine tools, namely, drilling tools; bits for power drills; power drill bits being parts of metalworking machines; power drill bits; tool bits for metalworking machines; drill bits for rock drilling; drilling heads, being parts of machines, namely, cutting tools at the end of drill strings used to remove materials and create ...