. "High-speed steel#M2" . "high speed" . . "High-speed steel#Types" . "tungsten alloyed steel" . "high-speed steel" . . "high-speed tool steels" . "cobalt steel" . "High-speed tool steels" . . "M-50" . . . "high speed steel" . "High-speed steel" . . . "high speed steel (HSS)" . "High-speed steel#Cobalt High Speed Steels (HSS)" . . "high speed steels" . "High-speed steel" . "High-speed steel#Cobalt steel" . . . . "High-speed steel#Forming" . "M42 Steel" . "M2 steel" . . . . .