# M30 — Carbide insert grade cross-reference by ISO application group and manufacturer For M30, manufacturer is KORLOY; grade designation(s) is PC9030 NC3030, recorded from its source on 2026-08-11. - **ISO application code:** M30 _(verified: appears in the quote below)_ - **Manufacturer:** KORLOY _(our reading, not quoted from the source)_ - **Grade designation(s):** PC9030 NC3030 _(verified: appears in the quote below)_ ## What the source says > M30 | AC2115 AC21125 | GC2135 GC235 | PC9030 NC3030 | ## Source - https://www.aceratool.com/carbide-insert-grades-chart/ Last verified: 2026-08-11. Review by: 2028-08-10. Part of [Carbide insert grade cross-reference by ISO application group and manufacturer](https://referencesource.org/carbide-insert-grade-cross-reference/).