Are you planning to cut some material with them? Cryogenic treatment is very expensive. It is used to bring metals to ambient temperature over a very gradual time span after tempering. This period could last sometimes weeks. The purpose is twofold: to keep the crystal lattice in the intended spatial arrangement and to avoid corrosion caused by tempering with salt. As an example, some high performance industrial knifes and other precision cutting tools (such as Japanese hairsculpting scissors) are now being cryogenically tempered.
It's a great buzzphrase for marketing!
Voodoo once more...
It's a great buzzphrase for marketing!
Voodoo once more...