| Material | Mill Type | Roll Type | Hardness |
| Cr12MoVCo Cr12Mo1V1 (D2) | Sendzimir 12-Hi CR mill | WR | 60-64 HRC |
| 5H12 H12 | Sendzimir 12-Hi CR mill | First IMR | 50-62 HRC |
| 5H12 | Sendzimir | Second IMR | 50-62 HRC |
TSR | Expert of Mill Rolls
Trust Stemming from Reliability