- Features
| 6640 grade functionally gradient substrate |
| Relatively low content of cobalt binder phase |
| Highly versatile material with very good operational reliability |
| Medium and higher cutting speed |
| Special surface finish for coating |
| Continuous and interrupted cut |
| +/-0.13 mm thickness tolerance |
| 0.05 to 0.152 mm inscribed circle tolerance |
| 0.15 to 1.2 mm feed/rev |