Solid carbide jobber drill, TiAlN, ⌀ DC h7: 3,1mm

Article no.: 122251 3,1
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⌀ DC h7 (mm) Unit price incl. VAT

Availability

  • Tool material: solid carbide
  • Standard: DIN 338
  • Type: N
  • Tolerance nominal ⌀: h7
  • Number of cutting edges Z: 2

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Product details

Technical Data

Nominal ⌀ DC 3.1 mm
Coating TiAlN
Tool material solid carbide
Standard DIN 338
Type N
Tolerance nominal ⌀ h7
Number of cutting edges Z 2
Point angle 118 degrees
recommended maximum drilling depth L2 31.4 mm
Helix angle 30 degrees
Shank Parallel shank to h7
Through-coolant no
Flute length Lc 36 mm
Overall length L 65 mm
Shank ⌀ Ds 3.1 mm
Shank tolerance h7
Feed f in steel < 1100 N/mm2 0.08 mm/rev.
Colour ring without
Type of product Jobber drill

Identification & Classification

Article number 122251 3,1
EAN / GTIN 4045197749109
Manufacturer number 122251 3,1
Manufacturer/responsible person Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com

Application Table

Alu plastics
N
260
Aluminium (short chipping)
N
180
Alu > 10% Si
N
180
Steel < 500 N/mm²
P
90
Steel < 750 N/mm²
P
90
Steel < 900 N/mm²
P
80
Steel < 1100 N/mm²
P
60
Steel < 1400 N/mm²
P
35
INOX < 900 N/mm²
M
35
INOX > 900 N/mm²
M
25
Ti > 850 N/mm²
S
25
GG(G)
K
90
CuZn
N
180
Uni
 
Oil
 
wet maximum
 
dry
 

Description

Version:

Similar to DIN 338.
Nominal ⌀ and shank ⌀ equal.
TiAlN coating for even better performance.

Note:

Flute length LC = L2 + 1.5 × DC.
Non slip clamping in drill chuck No. 341050 with diamond coated jaws.

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