Korloy DBN250 carbide grade — ISO 513 groups, coating and cross references
Grade identification
| Manufacturer | Korloy |
|---|---|
| Grade designation | DBN250 |
| Catalogue description | — |
| ISO 513 workpiece group | Pending catalogue verification |
| Coating family | Pending catalogue verification |
| Substrate | Pending catalogue verification |
| Source | KORLOY Digital Catalog — item group CNMA(cBN) (IG000278) · accessed 2026-10-02 |
Source: Korloy official catalogue, accessed 2026-10-02. Grade behaviour statements on this page are general ISO 513 engineering guidance, not manufacturer cutting data.
ISO 513 fit
The ISO 513 workpiece group for Korloy DBN250 is pending catalogue verification — the record is cited from the official catalogue, but the group classification has not been extracted yet. See ISO 513 material groups for what each letter means in practice.
Offered on these inserts
The manufacturer offers grade DBN250 on 6 catalogued ordering codes across 6 ISO 1832 models. Each row cites the official product record.
| Model | Ordering code | Chipbreaker | ISO 513 | Operation | Source |
|---|---|---|---|---|---|
| CNMA120404 | CNMA120404 DBN250 | — | — | — | Catalogue ↗ |
| CNMA120408 | CNMA120408 DBN250 | — | — | — | Catalogue ↗ |
| DNMA150404 | DNMA150404 DBN250 | — | — | — | Catalogue ↗ |
| DNMA150408 | DNMA150408 DBN250 | — | — | — | Catalogue ↗ |
| SNMA120402 | SNMA120402 DBN250 | — | — | — | Catalogue ↗ |
| SNMA120420 | SNMA120420 DBN250 | — | — | — | Catalogue ↗ |
Cross-brand grade equivalents
Equivalents are listed only when they can be traced to a published cross-reference chart or confirmed in both manufacturers' official catalogues. Unconfirmed chart rows are marked VERIFY; nothing on InsertBase is guessed.