| Ø D | 4,6 mm |
| L | 80 mm |
| l | 47 mm |
| Helix Angle | λ = 25°÷30° |
| Point angle | ε = 128° |
Material
HSS Co - super high-speed steel (5%Co) (HSSE) |
| Manufacturing Mode | V - ground from solid |
Usage
High-efficient drills with the higher thermal stress resistance are recommended for drilling of parts made of hard-tomachine materials, alloyed steel and cast steel, especially for drilling of cold- or hot-work tool steel, rolls for rolling mills, heat-treatable or carburizing steel, stainless steel. |
| Surface Treatment | bronzoxid |
Grinding Mode
C - conical lip relief, split point - form C |
Attachment:
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