HSS Punches press from metal sheets and dies together using punches to create the desired shape. A punch and die are used in the shearing process of piercing to make a hole in a sheet of metal or a plate. The process and machinery are usually the same as that used in blanking, except that the piece being punched out is a scrap in the piercing process. These have high tensile strength with seamless finishing. HSS Punches can withstand Extreme Temperatures.