# P20 — Carbide insert grade cross-reference by ISO application group and manufacturer For P20, manufacturer is Toshiba; grade designation(s) is TD915 T7020, recorded from its source on 2026-08-11. - **ISO application code:** P20 _(verified: appears in the quote below)_ - **Manufacturer:** Toshiba _(our reading, not quoted from the source)_ - **Grade designation(s):** TD915 T7020 _(verified: appears in the quote below)_ ## What the source says > P20 | R-200 R-300 | UC6010 UE6020 UC6025 F620 F7030 UP20M AP20M | GC4020 GC4025 GC4225 GC4030 GC3040 | TP200 T250M T25M CP20 F25M | AC230 AC2000 AC3000 | TD915 T7020 | ## Source - https://romaycorp.com/charts/carbide-comparison-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/).