| Ø D | 9,1 mm |
| L | 125 mm |
| l | 81 mm |
| Helix Angle | λ = 35°÷40° |
| Point angle | ε = 128° |
Material
HSSCo -super high-speed steel 5% Co (HSSE) |
Usage
High-efficient drills with higher thermal stress resistance are recommended for drilling of parts made of hard-to-machine materials, alloyed steel and cast steel, especially for drilling of cold- or hot-work tool steel, rolls for rolling mills, head-treatable or carburizing steel, stainless steel. |
| Manufacturing Mode | V – ground from solid |
| Surface Treatment | without treatment |
Grinding Mode
Form C – conical lip relief, split point - form C |
Attachment:
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