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EAN / GTIN:
Manufacturer number:
Cat. Nr.:
HOLEX Pro Steel solid carbide drill, plain shank DIN 6535 HE, TiAlN, ⌀ DC h7 (mm or inch): 4,2
Article no.: 122778 4,2
Article code:
- Tool material: Solid carbide
- Standard: DIN 6537 L
- Version: 6×D
- Tolerance nominal ⌀: h7
- Number of cutting edges Z: 2
Product details
Technical Data
| Series | Pro Steel | |
| Nominal ⌀ DC | 4.2 mm | |
| Coating | TiAlN | |
| Tool material | Solid carbide | |
| Standard | DIN 6537 L | |
| Version | 6×D | |
| Tolerance nominal ⌀ | h7 | |
| Number of cutting edges Z | 2 | |
| Point angle | 140 degrees | |
| recommended maximum drilling depth L2 | 29.7 mm | |
| Shank | DIN 6535 HE to h6 | |
| Through-coolant | yes, with 25 bar | |
| Machining strategy | HPC | |
| Flute length Lc | 36 mm | |
| Overall length L | 74 mm | |
| Shank ⌀ Ds | 6 mm | |
| Feed f in steel < 900 N/mm2 | 0.14 mm/rev. | |
| Colour ring | green | |
| Type of product | Jobber drill |
Identification & Classification
| Article number | 122778 4,2 | |
| EAN / GTIN | 4045197836779 | |
| Manufacturer number | 122778 4,2 | |
| Manufacturer/responsible person | Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com |
Application Table
N
250
N
200
N
160
P
125
P
115
P
95
P
90
P
65
M
35
M
30
K
100
K
65
Description
Version:
HOLEX Pro Steel:
Straight major cutting edges and a special flute profile ensure good chip evacuation. The robust cutting edge geometry ensures high-performance drilling with good process reliability. A wide range of applications in steel materials thanks to a combination of tough ultra-fine grain carbide and extremely wear-resistant coating.
Straight major cutting edges and a special flute profile ensure good chip evacuation. The robust cutting edge geometry ensures high-performance drilling with good process reliability. A wide range of applications in steel materials thanks to a combination of tough ultra-fine grain carbide and extremely wear-resistant coating.
Note:
Flute length LC = L2 + 1.5 × DC.