Jobber drill HSS N, TiN, ⌀ DC h8: 7,7mm

Article no.: 114360 7,7
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⌀ DC h8 (mm) Unit price incl. VAT

Availability

  • Tool material: HSS
  • Standard: DIN 338
  • Type: N
  • Tolerance nominal ⌀: h8
  • Point angle: 118

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Product details

Technical Data

Nominal ⌀ DC 7.7 mm
Coating TiN
Tool material HSS
Standard DIN 338
Type N
Tolerance nominal ⌀ h8
Point angle 118 degrees
Helix angle 35-40 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 < 500 N/mm2 0.13 mm/rev.
Colour ring without
Type of product Jobber drill

Identification & Classification

Article number 114360 7,7
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EAN / GTIN 4045197016836
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Manufacturer number 114360 7,7
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Manufacturer Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com

Application Table

Aluminium (short chipping)
suitable for / [m/min]
N
ISO code:
56
Alu > 10% Si
suitable for / [m/min]
N
ISO code:
50
Steel < 500 N/mm²
suitable for / [m/min]
P
ISO code:
50
Steel < 750 N/mm²
suitable for / [m/min]
P
ISO code:
37
Steel < 900 N/mm²
suitable for / [m/min]
P
ISO code:
31
Steel < 1100 N/mm²
suitable for / [m/min]
P
ISO code:
12
Steel < 1400 N/mm²
suitable for / [m/min]
P
ISO code:
10
INOX < 900 N/mm²
suitable for / [m/min]
M
ISO code:
15
INOX > 900 N/mm²
suitable for / [m/min]
M
ISO code:
10
Ti > 850 N/mm²
suitable for / [m/min]
S
ISO code:
6
GG(G)
suitable for / [m/min]
K
ISO code:
31
CuZn
suitable for / [m/min]
N
ISO code:
80
Oil
suitable for / [m/min]
 
wet maximum
suitable for / [m/min]
 

Description

Version:

Standard core without core taper.
Precision ground point.
Profile ground:
High concentricity and pitch accuracy, drills for series production use.
With point geometry shape C from size 2.4 mm

Recommendation:

Maximum drilling depth:
L2 = LC - 1.5 × DC.

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