America's Finest High-Speed Steel Cutting Tools™ by NORSEMAN/ CTD
Cryogenic Nitride Heavy-Duty High Speed Steel 135∘ Split point Twist Drills
Cryogenic Treatment -
- Create uniform grain structure resulting in sharper cutting edges and prolonged edge retention.
- Modifies the carbon micro-structure increasing resistance to wear.
Nitride Process -
- Case hardening resulting in superior tool life and exceptional corrosion resistance.
29pc. Ultra Dex 1/16" - 1/2" by 64th
Proudly Manufactured in the USA