Insert grades Insert grades Grade properties A PVD coated carbide Hardness of substrate Fracture toughness Transverse strength Grade Color Coated composition Coating layer Ratio (HV) (GPa) (MPa•m1/2) (MPa) PR005S 15.0 1,750 17.2 8.0 2,000 Gray black MEGACOAT HARD PR015S 14.9 1,680 16.5 9.0 2,400 PR905 14.8 1,720 16.8 9.0 2,450 Bluish violet TiAlN PR915 14.1 1,700 16.7 11.0 4,140 PR930 14.1 1,700 16.7 11.0 4,140 PR1005 Reddish gray TiCN 14.9 1,800 17.6 10.0 3,300 PR1025 14.5 1,600 15.8 13.0 3,400 PR1115 Purple red TiAlN 14.7 1,700 16.7 11.0 3,000 PR1210 14.8 1,720 16.8 9.0 2,450 Thin coating PR1215 14.7 1,700 16.7 11.0 3,000 Blackish red MEGACOAT PR1225 14.5 1,600 15.8 13.0 3,400 PR1230 13.7 1,450 14.2 13.0 2,250 PR1510 14.8 1,720 16.8 9.0 2,450 PR1515 14,7 1,700 16.7 11.0 3,000 PR1525 Reddish green MEGACOAT NANO 14.5 1,600 15.8 13.0 3,400 PR1535 14.3 1,320 12.9 16.0 3,700 PR1625 14,5 1,600 15.8 13.0 3,400 PR1725 Silver MEGACOAT NANO PLUS 14.5 1,600 15.8 13.0 3,400 Carbide Hardness of substrate Fracture toughness Transverse strength Grade Color Main component Coating layer Ratio (HV) (GPa) (MPa•m1/2) (MPa) KW10 15.0 1,650 16.2 10.0 1,470 GW15 14.7 1,700 16.7 11.0 3,000 GW25 14.5 1,600 15.8 13.0 3,400 Gray WC+Co - SW05 15.0 1,790 17.5 9.5 2,350 SW10 14.8 1,720 16.8 9.0 2,450 SW25 14.7 1,370 13.4 16.0 3,100 DLC coated carbide Hardness of substrate Fracture toughness Transverse strength Grade Color Coated composition Coating layer Ratio (HV) (GPa) (MPa•m1/2) (MPa) PDL010 15.0 1,650 16.2 10.0 1,470 Rainbow color C Thin coating PDL025 14.5 1,600 15.8 13.0 3,400 A21