NORSEMAN 47512 CT-150 CRYO-TECH SET

Norseman 190-CN CN-Tech Cryogenic Drill Bit Set, 135° Split Point, Jobber Length, 1/16" - 1/2" by 64ths, Number 1 to 60 and A to Z drill bits.

Cryogenic treatment Cat -300º F increases toughness while reducing brittleness. The cryogenic treatement process creates a more uniform "grain" structure by transforming retained austenite into martensite.

Modifies the carbon microstructure through precipitation of carbides increasing resistance to wear.

Nitride process diffuses nitrogen into the surface to create a case hardening resulting in superior tool life
and exceptional corrosion resistance.

Recommended for work hardening grades of stainless steel and other hard metal drilling application.