HOLEX Pro INOX solid carbide high-performance drill, plain shank DIN 6535 HE, AlTiN, ⌀ DC m7: 3,9mm

Article no.: 122392 3,9
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⌀ DC m7 (mm) Unit price incl. VAT
  • Tool material: Solid carbide
  • Standard: DIN 6537 K
  • Version: 4×D
  • Tolerance nominal ⌀: m7
  • Number of cutting edges Z: 2

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Product details

Technical Data

Series Pro Inox
Nominal ⌀ DC 3.9 mm
Coating AlTiN
Tool material Solid carbide
Standard DIN 6537 K
Version 4×D
Tolerance nominal ⌀ m7
Number of cutting edges Z 2
Point angle 140 degrees
recommended maximum drilling depth L2 18.2 mm
Shank DIN 6535 HE to h6
Through-coolant no
Flute length Lc 24 mm
Overall length L 66 mm
Shank ⌀ Ds 6 mm
Feed f in stainless steel < 900 N/mm2 0.06 mm/rev.
Colour ring blue
Type of product Twist Drill

Identification numbers & Classifications

Article number 122392 3,9
EAN / GTIN 4067263009573
Manufacturer number 122392 3,9

Application Table

Aluminium (short chipping)
N
140
Alu > 10% Si
N
120
Steel < 500 N/mm²
P
80
Steel < 750 N/mm²
P
75
Steel < 900 N/mm²
P
65
INOX < 900 N/mm²
M
35
INOX > 900 N/mm²
M
30
wet maximum
 
wet minimum
 

Description

Version:

Efficient drilling especially for use in stainless and acid-resistant steels.
Straight main cutting edges with optimised cutting edge design for improved chip breaking behaviour. Enlarged chip grooves for excellent chip evacuation.Increased wear resistance due to improved carbide substrate and high temperature resistant coating.

Note:

Flute length LC = L2 + 1.5 × DC.

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