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HOLEX Pro Steel high-precision countersink with unequal spacing 90° 20,5 mm

Article no.: 150182 20,5

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External ⌀ Dc (mm) Unit price incl. VAT
  • Countersink tip angle: 90
  • Tool material: HSS
  • 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 ⌀ 20.5 mm
    Coating TiAlN
    Countersink tip angle 90 degrees
    Tool material HSS
    Spacing of the countersink cutting edges unequal spacing
    Number of cutting edges Z 3
    Standard DIN 335 C
    Shank Plain shank with h9
    Through-coolant no
    smallest countersink ⌀ for holes from 3.5 mm
    Overall length L 63 mm
    Shank ⌀ Ds 10 mm
    for countersunk screws DIN 7991 M10
    Feed f in steel < 500 N/mm2 0.16 mm/rev.
    Colour ring green
    Series Pro Steel
    Type of product Stepped drill and countersink

    Identification numbers & Classifications

    Article number 150182 20,5
    EAN / GTIN 4062406524302
    Manufacturer number 150182 20,5

    Application Table

    Alu plastics
    N
    75
    Aluminium (short chipping)
    N
    70
    Steel < 750 N/mm²
    P
    50
    Steel < 900 N/mm²
    P
    40
    Steel < 1100 N/mm²
    P
    20
    Steel < 1400 N/mm²
    P
    15
    Steel < 55 HRC
    H
    8
    INOX < 900 N/mm²
    M
    18
    INOX > 900 N/mm²
    M
    15
    Ti > 850 N/mm²
    S
    12
    GG(G)
    K
    20
    CuZn
    N
    20
    Uni
     
    wet maximum
     
    dry
     

    Description

    Version:

    All countersinks have 3 cutting edges, radially relieved.
    Flutes are ground from solid.
    HOLEX Pro Steel:
    • Exact machining results in manual and machine use.
    • Chatter-free running through extremely unequal spacing of the cutting edges for high-quality surfaces.
    • Optimum tool life thanks to TiALN high-performance coating.
    • High process reliability due to optimised chip evacuation.
    • Attractive cost/benefit ratio.

    Application:

    High-precision countersink for chatter-free 90° countersinking.

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    HOLEX Pro Steel high-precision countersink with unequal spacing 90° 20,5 mm

    HOLEX Pro Steel high-precision countersink with unequal spacing 90° 20,5 mm

    Colour ring green without without
    for countersunk screws DIN 7991 M10 M10 M10
    Overall length L 63 100 100
    Countersink tip angle 90 90 90
    Standard DIN 335 C DIN 335 D DIN 335 D
    smallest countersink ⌀ for holes from 3.5 3.5 3.5
    Type of product Stepped drill and countersink Stepped drill and countersink Stepped drill and countersink

    From the same series "Pro Steel" View all

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