
Workpiece Material Cutting Speed Vc (m/min) Tlhaloso ea Tlhahlobo - Drill Bit Dia (≤12.00-22.00mm) Tlhaloso ea Tlhahlobo - Drill Bit Dia (≥25.00-28.00mm) Tlhahlobo ea Tlhahlobo - Drill Bit Dia (≥35.00-22.00mm) Kaho ea 70mm (≥35.00-30mm) 70mm 70mm. 80-100 0.085-0.100 0.080-0.110 0.080-0.140 tšepe e thata-thata (≤700mm)...
| Lisebelisoa tsa Workpiece | Cutting Speed Vc (m/min) | Tlhaloso ea Tlhahlobo - Drill Bit Dia(≤12.00-22.00mm) | Tlhaloso ea Tlhahlobo - Drill Bit Dia(≥25.00-28.00mm) | Tlhaloso ea Tlhahlobo - Drill Bit Dia(≥35.00-35.00mm) |
| Tšepe ea kaho (≤700mm) | 80-100 | 0.085-0.100 | 0.080-0.110 | 0.080-0.140 |
| Tšepe e thata-thata (≤700mm) | 80-100 | 0.085-0.100 | 0.080-0.110 | 0.100-0.140 |
| Tšepe e thatafalitsoeng ka mekotla (> 1100mm) | 70-80 | 0.070-0.100 | 0.080-0.110 | 0.100-0.130 |
| Tšepe e thibelang mocheso (≤700mm) | 70-80 | 0.070-0.100 | 0.080-0.110 | 0.080-0.140 |
| Tšepe e huloang ke serame (≤410mm) | 65-75 | 0.070-0.100 | 0.080-0.110 | 0.100-0.130 |
| Silicon tšepe (<1100mm) | 65-75 | 0.070-0.090 | 0.080-0.110 | 0.080-0.120 |
| Tšepe ea selemo (≤900mm) | 60-80 | 0.070-0.100 | 0.080-0.110 | 0.080-0.140 |
| Tšepe ea Austenitic | 60-80 | 0.070-0.090 | 0.080-0.110 | 0.100-0.120 |
| Tšepe e thibelang mocheso | 60-70 | 0.070-0.090 | 0.080-0.110 | 0.100-0.120 |
| Tšepe e khethehileng (≤700mm) | 60-80 | 0.070-0.100 | 0.080-0.110 | 0.080-0.140 |
| Silicon manganese tšepe (≤700mm) | 65-80 | 0.090-0.120 | 0.100-0.130 | 0.120-0.150 |
| Alloy cast iron, alloy cast iron, ductile iron | 70-100 | 0.090-0.120 | 0.100-0.130 | 0.120-0.150 |
| Aluminium | 100-200 | 0.080-0.110 | 0.080-0.120 | 0.080-0.140 |
| Koporo (Cu content ≥99%) | 120-300 | 0.050-0.090 | 0.050-0.110 | 0.080-0.120 |