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Serie | Pro Steel | |
Nominal ⌀ DC | 7.9 mm | |
Coating | TiAlN | |
Tool material | Solid carbide | |
Norm | DIN 6537 | |
Version | 6×D | |
Tolerance nominal ⌀ | h7 | |
Number of cutting edges Z | 2 | |
Point angle | 140 degrees | |
recommended maximum drilling depth L2 | 41.2 mm | |
Shank | DIN 6535 HE to h6 | |
Through-coolant | yes, with 25 bar | |
Machining strategy | HPC | |
Flute length Lc | 53 mm | |
Overall length L | 91 mm | |
Shank ⌀ Ds | 8 mm | |
Feed f in steel < 900 N/mm2 | 0.18 mm/rev. | |
Colour ring | green | |
Type of product | Jobber drill |
Article number | 122778 7,9 | |
EAN / GTIN | 4045197837172 | |
Manufacturer number | 122778 7,9 |
This article |
Recommendations |
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HOLEX Pro Steel solid carbide drill, Whistle-Notch shank DIN 6535 HE 7,9 |
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Number of cutting edges Z | 2 | 2 | 2 | 2 |
Through-coolant | yes, with 25 bar | no | yes, with 25 bar | yes, with 25 bar |
Norm | DIN 6537 | DIN 6537 K | DIN 6537 K | Manufacturer’s standard |
Point angle | 140 | 140 | 140 | 135 |
Machining strategy | HPC | HPC | HPC | HPC |
Flute length Lc | 53 | 41 | 41 | 76 |
Shank ⌀ Ds | 8 | 8 | 8 | 8 |