# M40 — Carbide insert grade cross-reference by ISO application group and manufacturer

For M40, manufacturer is DIJET; grade designation(s) is JC325V JC450V, recorded from its source on 2026-08-11.

- **ISO application code:** M40 _(verified: appears in the quote below)_
- **Manufacturer:** DIJET _(our reading, not quoted from the source)_
- **Grade designation(s):** JC325V JC450V _(verified: appears in the quote below)_

## What the source says

> M40 | | GC2025 | | TT5100 | | US735 | | | | JC325V JC450V |

## 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/).