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High-precision countersink, long 90° 20,5 mm

Article no.: 150371 20,5

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External ⌀ Dc (mm) Unit price incl. VAT
  • Countersink tip angle: 90
  • Tool material: HSS
  • Number of cutting edges Z: 3
  • Standard: Manufacturer’s standard
  • Shank: Plain shank with h9
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    Product details

    Technical Data

    External ⌀ 20.5 mm
    Coating uncoated
    Countersink tip angle 90 degrees
    Tool material HSS
    Number of cutting edges Z 3
    Standard Manufacturer’s standard
    Shank Plain shank with h9
    Through-coolant no
    smallest countersink ⌀ for holes from 3.5 mm
    Overall length L 114 mm
    Shank ⌀ Ds 10 mm
    for countersunk screws DIN 7991 M10
    Feed f in steel < 500 N/mm2 0.16 mm/rev.
    Shank tolerance h9
    Colour ring without
    Pre-drill ⌀ 3.5 mm
    Type of product Stepped drill and countersink

    Identification numbers & Classifications

    Article number 150371 20,5
    EAN / GTIN 4045197086143
    Manufacturer number 150371 20,5

    Application Table

    Alu plastics
    N
    70
    Aluminium (short chipping)
    N
    33
    Alu > 10% Si
    N
    20
    Steel < 500 N/mm²
    P
    28
    Steel < 750 N/mm²
    P
    27
    Steel < 900 N/mm²
    P
    27
    wet maximum
     
    dry
     

    Description

    Ausführung:

    Alle Senker mit 3 Schneiden, radial hinterschliffen. Spanräume aus dem Vollen geschliffen.
    Präzisions-Kegelsenker, hergestellt mit engeren Fertigungstoleranzen als nach DIN335-C mit langem, zylindrischem Schaft.

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