Mitsubishi CNMG120404-GK MC5015 Cast Iron Turning Insert (10pcs) 50 Degree Cutting Edge "No chip wrapping issues on

"No chip wrapping issues on 4140 steel

ISO / ANSI Model CNMG120404L-S CNMG431L-S Inscribed Circle (IC) 12

⭐⭐⭐⭐⭐ "Top tier for stainless" - Alessia G

BYS25 (Bronze Matrix) ISO M20 - M35 PVD Multi-Nano AlTiN Engineered for tough

Mitsubishi CNMG120404-GK MC5015 Cast Iron Turning Insert (10pcs) 50 Degree Cutting Edge "No chip wrapping issues onCNMG120404 GK MC5015 Cast Iron Specialist MC5015 Abrasive Resistance GK Robust Geometry Optimized for Abrasive Cast Iron Environments MC5015 Grade (The Wear Barrier): The MC5015 is Mitsubishi's premium CVD grade for K Class (Cast Iron). Cast iron is notoriously abrasive; this grade combats that with a specialized thick alumina ($Al_2O_3$) coating that provides industry leading flank wear resistance. This allows for significantly higher cutting speeds