D918S High performance twist drill for steel
Suitable for Drilling mild Steel, Interrupted cutting, defective Coolant condition and other severe working conditions
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- Feature
- Application
- Application case
- Ideal for drilling soft steel, interrupted cuts, poor cooling conditions and other severe conditions.
- New corrugated edge design, combining tip strength and cutting sharpness.
- New G-groove design enhances chipbreaking performance and tool rigidity.
- New substrate coating upgrade, more adaptable to working conditions and better versatility.
| Num of serirs | Specification | Cooling method | Cutting depth |
| D918S-A3N | 3～20mm | external cold | 3D |
| D918S-A3C | 3～20mm | internal cold | 3D |
| D918S-A5N | 3～20mm | external cold | 5D |
| D918S-A5C | 3～20mm | internal cold | 5D |
Specification
D918S Processing Case（Axis）
| Specification | D918S-A5N-1050 |
| Dimension | D10.5*71*118*d12 |
| Material | 42CrMo(HRC32) |
| Cutting speed | Vc=42.86m/min |
| Feed rate | fr =0.2mm/r |
| Cutting depth | ap=35mm |
| Cooling method | External Coolant |
| Cutting method | Horizontal processing
、pecking |
