Selection Guide
Inserts Information
Carbide Grade
Select the proper insert grade from pages 114-115. Material type, machine capabilities and type of hole, i.e., Interrupted Cut, can affect the grade of carbide used.
Coated
- Longer service life at higher speeds.
Uncoated
- Less expensive and effective in materials for which coatings do notadd any benefit.
Cermet
- Yields the highest speed and durability for selected materials.
Radius
Finish, bar rigidity, insert life, and engineering features of the workpiece all contribute to choosing the proper insert radius.
Larger
- Better surface finish and longer insert life.
Smaller
- Less cutting pressures, in extreme conditions, reduced bar flex and chatter.
Periphery
Pressed
- Utility grade for general purpose. Longer tool life.
Ground
- Better for finishing where tight bore tolerances are required.
