TT-321 Grade TNC (TiN Coated) Carbide Insert
Model #: CI-TT-321-TNC
- I.C.: 3/8"
- Radius: .015"
- Thickness: 1/8"
- Hole Diameter: .15"
- Made in USA.
Grade C5 carbide with Titanium Nitride coating for greater wear resistance.
Inserts have positive rake and chipbreaker groove.
Our 1/2", 5/8" and 3/4" shank indexable lathe turning tool holders use TT-321, TT-322, or TT-323.
The I.C. dimension is the diameter of a circle that could be drawn within a triangular insert, touching the midpoint of each side.