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Jobber drill long HSS N, uncoated, ⌀ DC h8: 31mm
Article no.: 116700 31
Article code:
- Tool material: HSS
- Standard: DIN 341
- Type: N
- Tolerance nominal ⌀: h8
- Point angle: 118
Product details
Technical Data
| Nominal ⌀ DC | 31 mm | |
| Coating | uncoated | |
| Tool material | HSS | |
| Standard | DIN 341 | |
| 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 | 192.5 mm | |
| Flute length Lc | 239 mm | |
| Overall length L | 360 mm | |
| Morse taper MT size | 3 | |
| Feed f in steel < 750 N/mm2 | 0.25 mm/rev. | |
| Colour ring | without | |
| Type of product | Jobber drill |
Identification & Classification
| Article number | 116700 31 | |
| EAN / GTIN | 4045197034526 | |
| Manufacturer number | 116700 31 | |
| Manufacturer | 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:
Compared to DIN 345 the flute length is longer by the drill bushing height. Thus the effective drilling depth is unaffected. Special surface treatment for improved chip evacuation.
With point geometry shape A.
With point geometry shape A.
Advantage:
For drilling through drill bushings in tool making, machine building and series production. Particularly important for drilling into uneven, inclined or arched surfaces.
Recommendation:
Maximum drilling depth:
L2 = LC - 1.5 × DC.
L2 = LC - 1.5 × DC.