Insert grades Insert grades A Grade properties Cermet Hardness of substrate Fracture toughness Transverse strength Grade Color Main component Coating layer Ratio (HV) (GPa) (MPa•m1/2) (MPa) TN610 6.6 1,750 17.2 6.0 2,100 TN620 6.9 1,550 15.2 9.0 2,500 TiCN TN620M 6.9 1,550 15.2 9.0 2,500 TN6020 6.4 1,500 14.7 10.0 2,500 TN60 Gray - 6.6 1,600 15.7 9.0 1,760 TN90 TiCN+NbC 6.4 1,450 14.2 10.0 1,960 TN100M 6.7 1,520 14.9 10.5 1,860 TC40 TiC+TiN 6.0 1,650 16.2 9.0 1,570 TC60 NbC 8.1 1,500 14.7 10.5 1,670 CVD coated cermet Hardness of substrate Fracture toughness Transverse strength Grade Color Coated composition Coating layer Ratio (HV) (GPa) (MPa•m1/2) (MPa) CCX Gold TiCN+Al2O3+TiN Thin coating 7.0 1,500 14.7 10.0 2,600 PVD coated cermet Hardness of substrate Fracture toughness Transverse strength Grade Color Coated composition Coating layer Ratio (HV) (GPa) (MPa•m1/2) (MPa) PV710 6.6 1,750 17.2 6.0 2,100 Gold MEGACOAT NANO PV720 6.9 1,550 15.2 9.0 2,500 PV7005 Thin coating 6.0 1,650 16.2 8.5 1,470 Blackish red MEGACOAT PV7040 6.0 1,650 16.2 9.0 1,570 PV90 Gold TiN 6.4 1,450 14.2 10.0 1,960 CVD coated carbide Hardness of substrate Fracture toughness Transverse strength Grade Color Coated composition Coating layer Ratio (HV) (GPa) (MPa•m1/2) (MPa) CA310 15 1,570 15.4 12.0 2,780 CA315 Rose Gold TiCN+Al2O3+Ti base 15 1,570 15.4 12.0 2,780 CA320 15 1,570 15.4 12.0 2,780 CA415D 15 1,570 15.4 12.0 2,780 Gold TiCN+Al2O3+TiN CA420M 14.5 1,600 15.8 13.0 3,400 CA4505 15.0 1,790 17.5 9.5 2,350 Blackish gray TiCN+Al2O3 CA4515 15.0 1,570 15.4 12.0 2,780 CA510 14.5 1,470 14.4 11.5 2,500 CA515 Thick coating 14.4 1,440 14.1 12.5 2,650 CA520D 14.7 1,370 13.4 16.0 3,100 CA025P 14.2 1,400 13.7 13.5 2,800 CA525 14.2 1,360 13.3 13.5 2,750 CA530 13.9 1,340 13.1 14.5 2,850 CA5505 TiCN+Al2O3+TiN 14.7 1,730 17.0 10.0 2,540 Gold CA5515 14.7 1,550 15.2 12.0 2,750 CA5525 14.5 1,400 13.7 12.0 2,780 CA5535 14.1 1,340 13.1 16.5 2,970 CA6515 14.7 1,530 15.0 12.0 2,780 CA6525 Thin coating 14.7 1,370 13.4 16.0 3,100 CA6535 14.3 1,320 12.9 16.0 3,700 CR9025 TiCN+TiN Thick coating 14.5 1,400 13.7 12.0 2,780 A20