Result1.4× tool life
Cutting conditions
| Grade | KBCN25N |
|---|---|
| Insert model | CNGA120408 |
| Workpiece material | S45C medium-carbon steel (HRC58) |
| Part / feature | Gear — face |
| Operation | Face turning |
| Cutting speed vc | 130 m/min |
| Feed f | 0.08 mm/rev |
| Depth of cut ap | 0.15 mm |
| Coolant | Wet |
| Data source | Field application |

Result and comparison basis
Suppressed edge breakage in heavy interrupted cutting; life extended to 1.4 times the previous grade.
Comparison basis: Previously used grade.
Comparative data from Koves internal cutting tests and customer field applications. Competitor grades are anonymized as reference grades. Results depend on workpiece, machine and setup; validate on your own production before adopting parameters.
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