High-precision countersink with unequal spacing 90° 4,3 mm

Article no.: 150389 4,3
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  • Countersink tip angle: 90
  • Tool material: HSS E
  • Spacing of the countersink cutting edges: unequal spacing
  • Number of cutting edges Z: 3
  • Standard: DIN 335 C

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    Product details

    Technical Data

    External ⌀ 4.3 mm
    Coating AlTiCN
    Countersink tip angle 90 degrees
    Tool material HSS E
    Spacing of the countersink cutting edges unequal spacing
    Number of cutting edges Z 3
    Standard DIN 335 C
    Shank Parallel shank to h9
    Through-coolant no
    smallest countersink ⌀ for holes from 1.3 mm
    Overall length L 40 mm
    Shank ⌀ Ds 4 mm
    for countersunk screws ISO 2009, 2010, 7046, 7047 M2
    Feed f in stainless steel < 900 N/mm2 0.1 mm/rev.
    Shank tolerance h9
    Colour ring blue
    Pre-drill ⌀ 1.3 mm
    Type of product Stepped drill and countersink

    Identification numbers & Classifications

    Article number 150389 4,3
    EAN / GTIN 4062406073213
    Manufacturer number 150389 4,3

    Application Table

    Alu plastics
    N
    53
    Aluminium (short chipping)
    N
    40
    Alu > 10% Si
    N
    35
    Steel < 500 N/mm²
    P
    55
    Steel < 750 N/mm²
    P
    30
    Steel < 900 N/mm²
    P
    25
    Steel < 1100 N/mm²
    P
    15
    Steel < 1400 N/mm²
    P
    12
    INOX < 900 N/mm²
    M
    18
    INOX > 900 N/mm²
    M
    13
    Ti > 850 N/mm²
    S
    13
    GG(G)
    K
    30
    CuZn
    N
    42
    wet maximum
     
    wet minimum
     
    dry
     

    Description

    Version:

    All countersinks have 3 cutting edges, radially relieved.
    Flutes are ground from solid.
    High-precision countersink, produced with tight manufacturing tolerances similar to DIN 335-C.
    Special geometry with unequal spacing and matching cutting edge preparation.
    Newly developed AlTiCN coating especially for stainless steels.

    Application:

    High-precision countersinks for chatter-free production of precise, round 90° countersunk surfaces.

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