The materials used to manufacture stamp & die tooling generally work well with the
cryogenic process. Whether you are punching blanks or stamping detailed relief, the
cryogenic process will help to prolong tool life and so improve the return on investment.
The way the items are taken to ultra low temperatures prevents cracking and will
not generally increase brittleness in standard metals used for making this type of
tool. Trials have shown a variety of improvements in life span, depending on the
material being worked as well as the tool material. An M2 punch and die set used
for stainless doubled life on an Amada machine. Whilst an S7 two part tool, forming
simple mild steel to an end post, gave a 5 fold increase.