# P30 — Carbide insert grade cross-reference by ISO application group and manufacturer

For P30, manufacturer is KORLOY; grade designation(s) is NC3020 NC3030 NC500H, recorded from its source on 2026-08-11.

- **ISO application code:** P30 _(verified: appears in the quote below)_
- **Manufacturer:** KORLOY _(our reading, not quoted from the source)_
- **Grade designation(s):** NC3020 NC3030 NC500H _(verified: appears in the quote below)_

## What the source says

> P30 | AC1225 | GC4225 GC4235 GC4025 GC4035 GC2135 | NC3020 NC3030 NC500H |

## 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/).