High-precision solid carbide countersink with unequal spacing 90° 31 mm

Article no.: 150388 31
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  • Countersink tip angle: 90
  • Tool material: Solid carbide
  • 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 ⌀ 31 mm
    Coating TiAlN
    Countersink tip angle 90 degrees
    Tool material Solid carbide
    Spacing of the countersink cutting edges unequal spacing
    Number of cutting edges Z 3
    Standard DIN 335 C
    Shank Plain shank with h6
    Through-coolant no
    smallest countersink ⌀ for holes from 4,2 mm
    Overall length L 71 mm
    Shank ⌀ Ds 12 mm
    for countersunk screws DIN 7991 M16
    Feed f in steel < 1100 N/mm2 0,24 mm/rev.
    Colour ring green
    Type of product Stepped drill and countersink

    Identification numbers & Classifications

    Article number 150388 31
    EAN / GTIN 4045197745620
    Manufacturer number 150388 31

    Application Table

    Alu plastics
    N
    80
    Aluminium (short chipping)
    N
    80
    Alu > 10% Si
    N
    60
    Steel < 500 N/mm²
    P
    65
    Steel < 750 N/mm²
    P
    60
    Steel < 900 N/mm²
    P
    50
    Steel < 1100 N/mm²
    P
    40
    Steel < 1400 N/mm²
    P
    10
    Steel < 55 HRC
    H
    12
    INOX < 900 N/mm²
    M
    25
    INOX > 900 N/mm²
    M
    20
    Ti > 850 N/mm²
    S
    15
    GG(G)
    K
    35
    CuZn
    N
    70
    Graphite, GRP, CRP
    N
    Uni
     
    wet maximum
     
    wet minimum
     
    Air
     

    Description

    Version:

    All countersinks have 3 cutting edges. Special geometry with extremely unequal spacing and matching cutting edge preparation. Radially relief ground. Flutes ground from solid. Newly developed special TiAlN coating for long service life.
    High-precision countersink, produced with tight manufacturing tolerances similar to DIN 335-C.

    Advantage:

    Very smooth cutting throughout the entire countersinking operation. Chatter-free running for perfect results and optimum tool service life.

    Application:

    High-precision countersinks for production of exactly round 90° countersunk surfaces.
    Very well suited to virtually all materials. Advantage in comparison to HSS countersinks especially in the field of high-tensile steels and because the working life is several times longer. Shank tolerance h6 - suitable for mounting in hydraulic chucks or shrink-fit chucks.

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