Jobber drill HSS N, uncoated, ⌀ DC h8: 20mm

Article no.: 116340 20
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⌀ DC h8 (mm) Unit price incl. VAT

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  • Tool material: HSS
  • Standard: DIN 345
  • Type: N
  • Tolerance nominal ⌀: h8
  • Point angle: 118

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Product details

Technical Data

Nominal ⌀ DC 20 mm
Coating uncoated
Tool material HSS
Standard DIN 345
Type N
Tolerance nominal ⌀ h8
Point angle 118 degrees
Helix angle 20-30 degrees
Shank Morse taper
Number of cutting edges Z 2
Through-coolant no
recommended maximum drilling depth L2 110 mm
Flute length Lc 140 mm
Overall length L 238 mm
Morse taper MT size 2
Feed f in steel < 750 N/mm2 0.2 mm/rev.
Colour ring without
Type of product Jobber drill

Identification & Classification

Article number 116340 20
EAN / GTIN 4045197030467
Manufacturer number 116340 20
Manufacturer/responsible person Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Deutschland, www.hoffmann-group.com

Application Table

Aluminium (short chipping)
N
45
Steel < 500 N/mm²
P
40
Steel < 750 N/mm²
P
30
Steel < 900 N/mm²
P
25
GG(G)
K
25
Oil
 
wet maximum
 

Description

Execuţie:

Suprafaţă supusă unui tratament special, care permite reducerea tendinţei de depunere a materialului şi evacuarea îmbunătăţită a aşchiilor.
Burghiu elicoidal ultraperformant de calitate superioară.
Partea aşchietoare ≤ ⌀ 26,5 mm rectificată din material solid, > ⌀ 26,5 mm strunjit. Astfel, se obţine precizie ridicată a concentricităţii şi acurateţe a pasului, cu tăiş obţinut prin ascuţire de precizie de până la ⌀ 40 mm.
Cu geometrie la vârf forma A.

Recomandare:

Adâncimea maximă de găurire:
L2 = LC - 1,5 × DC.

Notă:

Pentru reducţii recomandate pentru scule cu coadă tip Con Morse, consultaţi Cod 343000-343530.

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