Korloy CNMG120404-HM NC3120 High-Performance Steel Turning Insert (10pcs) contour boring the PC9030 features a high-toughness

the PC9030 features a high-toughness substrate and a specialized PVD coating that prevents built-up edge (BUE)

Optimized for Stainless Steel: The ultra-smooth PVD coating prevents material adhesion

The right-hand (R) approach orientation combined with a 107

Machinist's Pro Tip: If your stainless steel chips look "burnt" or torn

or equivalent 1

Korloy CNMG120404-HM NC3120 High-Performance Steel Turning Insert (10pcs) contour boring the PC9030 features a high-toughnessThe Original Korloy CNMG120404 HM NC3120 (ANSI Standard: CNMG 431) represents the next generation of high efficiency steel turning. Engineered with an advanced thick CVD coating, the NC3120 grade is optimized to withstand higher cutting temperatures and resist flank wear more effectively than its predecessors. With the precision ground 0. 4mm (1 64") radius and the legendary HM chipbreaker, this insert provides exceptional chip control and a superior