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Plain shank thread mill with countersinking step 2×D 7/16-14

Article no.: 139725 7/16-14

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UNC Unit price incl. VAT
  • Thread type: UNC; UNC-LH
  • Flank angle: 60
  • Tool material: Solid carbide
  • Shank: DIN 6535 HA with h6
  • Through-coolant: yes

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    Product details

    Technical Data

    Thread size 7/16-14 UNC
    Coating TiAlN
    Thread type UNC; UNC-LH
    Flank angle 60 degrees
    Tool material Solid carbide
    Shank DIN 6535 HA with h6
    Through-coolant yes
    Thread pitch 1.814 mm
    Threads per inch 14
    Nominal ⌀ DC 8.57 mm
    Shank length Ls 45 mm
    Overall length L 89 mm
    Shank ⌀ Ds 14 mm
    Neck ⌀ D1 11.4 mm
    No. of teeth Z 3
    Feed fz in steel < 1100 N/mm2 0.04 mm
    Application for type of drilling up to 2×D for blind holes; up to 2×D for through holes
    Countersink angle 90 degrees
    Shank tolerance h6
    Number of clamping slots 3
    Colour ring green
    Internal/external application Internal
    Hole ⌀ 8.57 mm
    Thread depth 22.22 mm
    Type of product thread milling cutter

    Identification numbers & Classifications

    Article number 139725 7/16-14
    Manufacturer number 139725 7/16-14

    Application Table

    Alu plastics
    N
    220
    Aluminium (short chipping)
    N
    220
    Alu > 10% Si
    N
    170
    Steel < 500 N/mm²
    P
    170
    Steel < 750 N/mm²
    P
    150
    Steel < 900 N/mm²
    P
    120
    Steel < 1100 N/mm²
    P
    80
    Steel < 1400 N/mm²
    P
    60
    Steel < 55 HRC
    H
    35
    INOX < 900 N/mm²
    M
    90
    INOX > 900 N/mm²
    M
    70
    Ti > 850 N/mm²
    S
    60
    GG(G)
    K
    120
    CuZn
    N
    180
    Uni
     
    wet maximum
     

    Description

    Version:

    Corrected thread profile for milling exact internal threads (ensure stable clamping conditions).
    Incorporating a countersink profile for a 90° countersink.

    Advantage:

    Countersinking and thread milling in one operation!

    Application:

    For UNC unified coarse threads ASME-B1.1.

    Note:

    NEW GENERATION AVAILABLE!
    Recommended successor product is No. 139723.

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