CTD Cryo-Tech Drill Bit Set, 29Pc Type 190-CN

Nitrided coating creates surface hardness to 70 Rockwell C, exceptional corrosion resistance & heat.
Cryo Treatment — increases toughness while reducing brittleness.
Replaces cobalt drills when drilling series 300 & 400 stainless steel.
Excellent for Truck & Trailer repair, Recreation equipment repair & MRO distribution partners.

Benefits of Cryogenic Hardening

Cryogenic hardening is able to make metal objects and workpieces more resistance to wear and tear. Metal doesn’t just become harder through cryogenic hardening; it becomes tougher and more resistant to wear.

Cryogenic hardening offers stress relief of metal. When metal is exposed to heat and then rapidly cooled, stresses are created. Cryogenic hardening, however, can eliminate these stresses to achieve a uniform composition.