ResultLowest flank wear
Cutting conditions
| Grade | KBN5010 |
|---|---|
| Insert model | CNGA120408 |
| Workpiece material | SUJ2 (GCr15) bearing steel (HRC62) |
| Part / feature | Shaft — outer diameter |
| Operation | Continuous turning (OD) |
| Cutting speed vc | 180 m/min |
| Feed f | 0.1 mm/rev |
| Depth of cut ap | 0.1 mm |
| Coolant | Dry |
| Data source | Internal cutting test |
Result and comparison basis
In continuous turning of hardened bearing steel (HRC 62) at 180 m/min, KBN5010 showed the lowest flank wear of all grades in the comparison and delivered the longest tool life of the test.
Comparison basis: Two competitor reference grades (coated and uncoated) under identical conditions.
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.