# P01 — Carbide insert grade cross-reference by ISO application group and manufacturer

For P01, manufacturer is Walter; grade designation(s) is WQM15 WTA21, recorded from its source on 2026-08-11.

- **ISO application code:** P01 _(verified: appears in the quote below)_
- **Manufacturer:** Walter _(our reading, not quoted from the source)_
- **Grade designation(s):** WQM15 WTA21 _(verified: appears in the quote below)_

## What the source says

> P01 | R-100 R-200 | UE6005 F7010 | GC4015 GC4215 | TX110 | AC1000 | T7005 TD905 T715X | KC9010 KC910 | | SV515 SV305 | WQM15 WTA21 |

## 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 **WQM15 WTA21**, as of 2026-08-11.

> P01 | R-100 R-200 | UE6005 F7010 | GC4015 GC4215 | TX110 | AC1000 | T7005 TD905 T715X | KC9010 KC910 | | SV515 SV305 | WQM15 WTA21 |

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

aceratool.com says grade designation(s) is **WAP01**, as of 2026-08-11.

> P01 | | GC4005 GC4205 | NC3010 | | WAP01 |

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/industrial-consumable-tooling-cross-reference/).