# M40 — Carbide insert grade cross-reference by ISO application group and manufacturer For M40, manufacturer is KENNAMETAL; grade designation(s) is KC9045 KC9245, recorded from its source on 2026-08-11. - **ISO application code:** M40 _(verified: appears in the quote below)_ - **Manufacturer:** KENNAMETAL _(our reading, not quoted from the source)_ - **Grade designation(s):** KC9045 KC9245 _(verified: appears in the quote below)_ ## What the source says > M40 | | GC2025 | | TT5100 | | US735 | | | | JC325V JC450V | GX30 GF30 | KC9045 KC9245 | ## 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/industrial-consumable-tooling-cross-reference/).