Mitsubishi CNMG120408-MA UC5115 Cast Iron Turning Insert (10pcs) VBMT221 51 Inscribed Circle (IC) 9

51 Inscribed Circle (IC) 9

Optimized 61 Breaker

The 14W designation identifies this as a 14 threads per inch Whitworth form

The BEYOND SVQBL1616H11 is an industrial-grade left-hand indexable external profiling tool holder engineered for high-precision back-turning

Be aware they are larger than the standard 1204 size

Mitsubishi CNMG120408-MA UC5115 Cast Iron Turning Insert (10pcs) VBMT221 51 Inscribed Circle (IC) 9CNMG120408 MA UC5115 The Cast Iron Specialist UC5115 CVD Hardness Abrasive Resistance Geometry Engineered for Abrasive Environments UC5115 Grade (Ultra Hard CVD Coating): The UC5115 is Mitsubishi's flagship grade for K Class (Cast Iron). Cast iron is notoriously abrasive, leading to rapid flank wear. The UC5115 substrate is paired with a specialized TiCN + Al2O3 coating that offers extreme hardness and thermal stability, ensuring the cutting edge