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, 1/4 - 3/4, 1/4 - 7/8, 7/8 - 1-1/8"
- Numbers: #1, #3, #7 & #11
- Made in the U.S.A.