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Article code:
EAN / GTIN:
Manufacturer number:
Cat. Nr.:
Jobber drill extra long HSS N, uncoated, ⌀ DC h8: 8R1mm
Article no.: 238317
Catalog no.: 116760
Article code:
- Tool material: HSS
- Standard: DIN 1870 R1
- Type: N
- Tolerance nominal ⌀: h8
- Point angle: 118
Product details
Technical Data
| Nominal ⌀ DC | 8 mm | |
| Coating | uncoated | |
| Tool material | HSS | |
| Standard | DIN 1870 R1 | |
| Type | N | |
| Tolerance nominal ⌀ | h8 | |
| Point angle | 118 degrees | |
| Helix angle | 16-30 degrees | |
| Shank | Morse taper | |
| Number of cutting edges Z | 2 | |
| Through-coolant | no | |
| recommended maximum drilling depth L2 | 153 mm | |
| Flute length Lc | 165 mm | |
| Overall length L | 265 mm | |
| Morse taper MT size | 1 | |
| Feed f in steel < 750 N/mm2 | 0.1 mm/rev. | |
| Colour ring | without | |
| Type of product | Jobber drill |
Identification & Classification
| Article number | 238317 | |
| Catalog number | 116760 | |
| EAN / GTIN | 4045197035189 | |
| Manufacturer number | 116760 8R1 | |
| Manufacturer/responsible person | Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com |
Application Table
P
40
P
30
P
25
K
25
Description
Version:
High concentricity. Core thickness and core taper are standard.
Special surface treatment.
Precision ground point. When drilling deep holes, evacuate chips from the hole frequently, and ensure adequate cooling.
Economy version with standard flutes.
With point geometry shape A.
Special surface treatment.
Precision ground point. When drilling deep holes, evacuate chips from the hole frequently, and ensure adequate cooling.
Economy version with standard flutes.
With point geometry shape A.
Recommendation:
Maximum drilling depth:
L2 = LC - 1.5 × DC.
L2 = LC - 1.5 × DC.