Result1.2× part count
Cutting conditions
| Grade | KBCN20N |
|---|---|
| Insert model | CNGA120408 |
| Workpiece material | Alloy steel (HRC60-63) |
| Part / feature | Gear transmission housing — outer diameter |
| Operation | Continuous turning (OD) |
| Cutting speed vc | 80 m/min |
| Feed f | 0.22–0.24 mm/rev |
| Depth of cut ap | 0.15 mm |
| Coolant | Wet |
| Data source | Field application |

Result and comparison basis
1.2 times the part count of the previous grade at the Rz < 6.3 μm life criterion.
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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