Summary of Insert Grades A Kyocera promotes research and development to help improve customers' productivity and profitability. Kyocera provides high-quality inserts in various grades including Cermet, Coated Carbide, Coated Super Micro Grain Carbide, Carbide, Ceramic, PCD and CBN. ■ Turning Insert Grades Workpiece Steel Stainless steel / Cast steel Cast Iron Material (Carbon steel / Alloy steel) (Gray cast iron / Nodular cast iron) Cutting Range Finishing Roughing Finishing Roughing Finishing Roughing Classification P01 P10 P20 P30 P40 M01 M10 M20 M30 M40 K01 K10 K20 K30 TN610 TN610 TN6010 TN6010 TN Series TN620 TN620 TN6020 TN6020 TN60 TN60 TN60 TN90 TN90 Cermet TC Series TC60M TC60M PV Series PV7020 PV7020 PV90 PV90 MEGACOAT PV7010 PV7010 PV7005 (PV Series) PV7025 PV7025 MEGACOAT PV710 PV710 NANO PV720 PV720 (PV Series) CA510 CA515 CA6515 CA525 CA6525 CA4010 CA530 CA4115 CA Series CA5505 CA4120 CA5515 CA4505 Coated Carbide CA5525 CA4515 CA5535 PR930 PR930 PR Series PR1005 PR1025 PR1025 PR1125 PR1115 MEGACOAT PR1225 PR1225 (PR Series) MEGACOAT PR1425 PR1425 NANO PR1535 PR1535 (PR Series) KA30 KT66 Ceramic A66N PT600M KS6050 CS7050 Carbide KW10 GW15 KBN475 CBN KBN60M KBN900 A2