# P20 — Carbide insert grade cross-reference by ISO application group and manufacturer

For P20, manufacturer is Iscar; grade designation(s) is IC9015 IC635, recorded from its source on 2026-08-11.

- **ISO application code:** P20 _(verified: appears in the quote below)_
- **Manufacturer:** Iscar _(our reading, not quoted from the source)_
- **Grade designation(s):** IC9015 IC635 _(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 | KC725M KC9125 KC9040 KC625M KC850 CM4 KC9025 KC631M | IC9015 IC635 |

## Sources disagree

More than one authority states this, and they do not state the same
thing. Both are reproduced with the source each came from.

### Grade designation(s)

romaycorp.com says grade designation(s) is **IC9015 IC635**, as of 2026-08-11.

> 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 | KC725M KC9125 KC9040 KC625M KC850 CM4 KC9025 KC631M | IC9015 IC635 |

Source: https://romaycorp.com/charts/carbide-comparison-chart/

aceratool.com says grade designation(s) is **IC9015, IC9025 IC9150, IC9250 IC9350, IC4050**, as of 2026-08-11.

> P20 | AC1125 AC1225 | GC4015 GC4225 GC4025 GC4215 LC25 | NC3015 NC3020 NC500H | TT1500 | WAP20 | UC6010 UE6110 UE6020 F7030 | AC2000 AC3000 AC820P | T9015 T9025 | CA5515 CA5525 CA5025 CR9025 | JC110V JC215V JC730U | HG8025 GM8020 | KC8050 KC9025 KC9125 | TP2000 TP2500 TK2000 MP2500 T250M | IC9015, IC9025 IC9150, IC9250 IC9350, IC4050 |

Source: https://www.aceratool.com/carbide-insert-grades-chart/


## Source

- https://romaycorp.com/charts/carbide-comparison-chart/
- 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/).