Insert grades CermetCoated carbide Summary of insert grades A Grooving / Cut-Off / Threading Workpiece material Steel Stainless steel / Cast steel 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 MEGACOAT PV7040 PV7040 TN620 TN620 TN6020 TN6020 TN series TN60 TN60 TN60 TN90 TN90 TC40 TC40 TC series TC60 TC60 CR series CR9025 CR9025 PR915 PR915 PR905 PR930 PR930 PR series PR1025 PR1025 PR1115 PR1215 PR1215 PR1215 MEGACOAT PR1225 PR1225 PR1515 PR1535 MEGACOAT NANO PR1535 PR1625 PR1625 A65 Ceramic A66N PT600M KW10 Carbide GW15 Workpiece material Non-ferrous metals Difficult-to-cut materials Hard materials Sintered steel Titanium / Titanium alloys Cutting range Finishing Roughing Finishing Roughing Finishing Roughing Finishing Roughing Classification N01 N10 N20 N30 S01 S10 S20 S30 H01 H10 H20 H30 01 10 20 30 MEGACOAT PR1215 Coated carbide PR1225 Cermet TN60 A65 Ceramic A66N PT600M KW10 Carbide GW05 KW10 GW15 GW15 DLC coated carbide PDL025 KBN510 CBN KBN570 KBN525 KPD001 KPD001 PCD KPD010 KPD010 A4