Result890 pcs — about 30% longer life
Cutting conditions
| Grade | KBCN5010 (coated) |
|---|---|
| Insert model | VCGW160404 |
| Workpiece material | 16MnCr5 case-hardening steel |
| Part / feature | Shaft — outer diameter |
| Operation | Continuous turning (OD) |
| Cutting speed vc | 215 m/min |
| Feed f | 0.03 mm/rev |
| Depth of cut ap | 0.1–0.2 mm |
| Coolant | Wet |
| Data source | Field test at customer site |

Result and comparison basis
Two field tests reached 890 and 850 parts respectively, against 650 and 720 parts for the Japanese reference grade — roughly 30% longer tool life at 215 m/min.
Comparison basis: One Japanese reference 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.
Need help choosing a grade?
Send us your workpiece material, hardness and machine parameters. Our engineers will recommend the right grade and cutting data.