Features:Titanium Carbon Nitride 3 Piece Set
- 2 - 4x the tool life of Titanium Nitride coated tools
- Improved lubricity for better performance in steel and aluminum
- Twice as hard as titanium nitride coating
- 3-Flats on shank
- Measurements: 1/8 - 1/2, 3/16 - 1/2 & 1/4 - 3/4"
- Numbers: #1, #4 & #3
- Made in the U.S.A.