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HSS jobber drill Precision roll forged N 7,7 mm
Article no.: 114020 7,7
Article code:
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Precision roll forged (11 4020): The profile is forged in a chipless process, the guide chamfers are additionally ground.
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- Tool material: HSS
- Type: N
- Tolerance nominal ⌀: h8
- Point angle: 118
- Shank: Plain shank
Product details
Technical Data
| Nominal ⌀ DC | 7.7 mm | |
| Coating | uncoated | |
| Tool material | HSS | |
| 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 | 63.5 mm | |
| Flute length Lc | 75 mm | |
| Overall length L | 117 mm | |
| Shank ⌀ Ds | 7.7 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 | 114020 7,7 | |
| EAN / GTIN | 4045197010209 | |
| Manufacturer number | 114020 7,7 |
Application Table
N
45
P
40
P
30
P
25
K
25
Description
Version:
Roll forged, standard helix angle, core thickness and core taper.
Dimensions to DIN 338.
Robust jobber drill with strengthened core and small chisel point for easy spot drilling and accurate centring of the designated hole. Precision roll forged flutes.
Dimensions to DIN 338.
Robust jobber drill with strengthened core and small chisel point for easy spot drilling and accurate centring of the designated hole. Precision roll forged flutes.
Recommendation:
Maximum drilling depth:
L2 = LC - 1.5 × DC.
L2 = LC - 1.5 × DC.
Note:
Size 14-20: Shank ⌀ 13 mm with 3 drive flats.
Downloads & documents
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|
| Number of cutting edges Z | 2 | 2 | 2 |
| Colour ring | without | without | without |
| Through-coolant | no | no | no |
| Nominal ⌀ DC | 7.7 | 7.7 | 7.7 |
| Point angle | 118 | 118 | 118 |
| Tolerance nominal ⌀ | h8 | h8 | h8 |
| Type of product | Jobber drill | Jobber drill | Jobber drill |