Mitsubishi CNMG120408-GH US735 Stainless Steel Roughing Insert (10pcs) 62.5 Degree Tool Holder While NS9530 has better toughness

While NS9530 has better toughness than standard cermets

Heavy Boring Bars: S32T-DDUNR15 / S40U-DDUNR15 / S50V-DDUNR15

this insert excels in both continuous and light interrupted cuts

PVD-coated cutting edges to lower thermal bonding

Mitsubishi CNMG120408-GH US735 Stainless Steel Roughing Insert (10pcs) 62.5 Degree Tool Holder While NS9530 has better toughnessCNMG120408 GH US735 Stainless Steel Warrior US735 Impact Grade GH Reinforced Edge Engineered for Impact and Reliability US735 Grade (The Impact King): The US735 is Mitsubishi's legendary CVD grade for M Class (Stainless Steel). It is formulated with a specialized substrate that prioritizes fracture toughness over pure hardness. This makes it the only choice for "problem" jobs involving heavy interruptions, scale covered castings, or machines with less