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End cutting thread mill 2.5×D, TiAlN, M: M3

Article no.: 139521 M3
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Availability

  • Thread type: M; M-LH
  • Flank angle: 60
  • Tool material: Solid carbide
  • Thread standard: DIN 13
  • Shank: DIN 6535 HA with h6

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Product details

Technical Data

Thread size M3
Coating TiAlN
Thread type M; M-LH
Flank angle 60 degrees
Tool material Solid carbide
Thread standard DIN 13
Shank DIN 6535 HA with h6
Number of cutting edges Z 4
Through-coolant yes
Application for type of drilling up to 2×D for blind holes; up to 2.5×D for through holes
Countersink angle 90 degrees
Cutting direction right-hand
Thread pitch 0.5 mm
Cutting edge ⌀ DC 2.4 mm
Cutter length lc 1.8 mm
Overhang L1 8.2 mm
Shank length Ls 44 mm
Overall length L 57 mm
Shank ⌀ Ds 6 mm
Neck ⌀ D1 1.7 mm
Programming radius 1.2 mm
Feed f z in steel < 65 HRC 0.01 mm
Thread profile Full profile
Shank tolerance h6
Number of clamping slots 4
Colour ring without
Internal/external application Internal
Thread depth 7.5
Type of product Combination drill / thread mill

Identification & Classification

Article number 139521 M3
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EAN / GTIN 4062406565657
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Manufacturer number 139521 M3
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Manufacturer Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com

Application Table

Steel < 1100 N/mm²
suitable for / [m/min]
P
ISO code:
90
Steel < 1400 N/mm²
suitable for / [m/min]
P
ISO code:
90
Steel < 55 HRC
suitable for / [m/min]
H
ISO code:
45
Steel < 60 HRC
suitable for / [m/min]
H
ISO code:
40
Steel < 65 HRC
suitable for / [m/min]
H
ISO code:
35
INOX < 900 N/mm²
suitable for / [m/min]
M
ISO code:
60
INOX > 900 N/mm²
suitable for / [m/min]
M
ISO code:
60
Ti > 850 N/mm²
suitable for / [m/min]
S
ISO code:
45
wet maximum
suitable for / [m/min]
 
Air
suitable for / [m/min]
 

Description

Version:

Tool for combined production of bore, chamfer and thread in a single work step. Pre-drilling is no longer required. The innovative centre cutting edge geometry makes this tool a specialist in thread production in hardened and hard-to-machine materials. The TiAlN high-performance coating ensures the longest possible tool life, especially in hardened steels up to 63 HRC. All tools have left-hand cutting and are suitable for right-hand and left-hand threads.

Note:

Always use with cooling lubricant emulsion. (Fat content minimum 8%). In the case of steels >45 HRC: can only be used with compressed air!
Can also be used for thread size MF4×0.5.

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