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Manufacturer number:
HOLEX CleverDrill HSS jobber drill N, uncoated, ⌀ DC h8 (mm or inch): 7,9
Article no.: 114031 7,9
Article code:
- Tool material: HSS
- Standard: DIN 338
- Type: N
- Tolerance nominal ⌀: h8
- Point angle: 118
Product details
Technical Data
| Series | CleverDrill | |
| Nominal ⌀ DC | 7.9 mm | |
| Coating | uncoated | |
| Tool material | HSS | |
| Standard | DIN 338 | |
| Type | N | |
| Tolerance nominal ⌀ | h8 | |
| Point angle | 118 degrees | |
| Shank | Plain shank | |
| Number of cutting edges Z | 2 | |
| Through-coolant | no | |
| recommended maximum drilling depth L2 | 63.2 mm | |
| Flute length Lc | 75 mm | |
| Overall length L | 117 mm | |
| Shank ⌀ Ds | 7.9 mm | |
| Feed f in steel < 750 N/mm2 | 0.07 mm/rev. | |
| Colour ring | without | |
| Type of product | Jobber drill |
Identification numbers & Classifications
| Article number | 114031 7,9 | |
| EAN / GTIN | 4062406744342 | |
| Manufacturer number | 114031 7,9 |
Application Table
N
80
N
60
N
50
P
35
P
32
P
22
P
18
K
30
N
40
Description
Version:
HOLEX CleverDrill: Sturdy drills for all standard applications. Improved spot drilling behaviour due to cross-ground form. Standard core thickness and core taper. Profile ground. Surface: Bronze-coloured tempered helical flutes.
Recommendation:
Maximum drilling depth:
L2 = LC - 1.5 × DC.
L2 = LC - 1.5 × DC.
Note:
Successor product to No. 114030.
Size 13.2 – 20: With stepped shank ⌀ 12.7 mm.
Size 13.2 – 20: With stepped shank ⌀ 12.7 mm.
Downloads & documents
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| Colour ring | without | without | without | without | without | green | green |
| Overall length L | 117 mm | 117 mm | 117 mm | 117 mm | 117 mm | 117 mm | 117 mm |
| Through-coolant | no | no | no | no | no | no | no |
| Nominal ⌀ DC | 7.9 mm | 7.9 mm | 7.9 mm | 7.9 mm | 7.9 mm | 7.9 mm | 7.9 mm |
| Shank | Plain shank | Plain shank | Plain shank | Plain shank | Plain shank | Plain shank | Plain shank |
| Tolerance nominal ⌀ | h8 | h8 | h8 | h8 | h8 | h8 | h8 |
| Shank ⌀ Ds | 7.9 mm | 7.9 mm | 7.9 mm | 7.9 mm | 7.9 mm | 7.9 mm | 7.9 mm |