star cnc machine inside

Catalog
Comparison : Item # 866R2.5BI40, BI40 Aluminum Titanium (Carbon) Nitride (AlTi(C)N) Back Turning Insert with 'W' Chip Roller
Item # 866R2.5BI90, BI90 Aluminum Titanium Nitride (AlTiN) Back Turning Insert with 'W' Chip Roller
Item # 866R2.5TIN, Titanium Nitride (TiN) Back Turning Insert with 'W' Chip Roller