ISOTURN INSERTS UncoatedCoatedUncoatedCoatedUncoated CeramicCeramicCeramicCeramicCeramic USER GUIDE Ceramic Grades Hard Tough Hardened Materials ISO IN22 IN23 IN420 H01 H10 H20 H30 Cast Iron (Gray Cast Iron / Nodular Cast Iron) ISO IS6 IS8 IN23 IN110 IS80 K01 K10 K20 K30 Heat-Resistant Alloys / Inconel ISO IW7 IS25 IS9 IS35 S01 S10 S20 S30 134 ISCAR