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Machine tap 7/8-9

Article no.: 137860 7/8-9

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UNC Unit price incl. VAT
  • Thread type: UNC
  • Flank angle: 60
  • Tool material: HSS E
  • Standard: DIN 376
  • Tolerance class: 2B

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    Product details

    Technical Data

    Thread size 7/8-9 UNC
    Coating uncoated
    Thread type UNC
    Flank angle 60 degrees
    Tool material HSS E
    Standard DIN 376
    Tolerance class 2B
    Taper lead form C
    Helix angle 20 degrees
    Shank Plain shank with h9
    Through-coolant no
    Application for type of drilling up to 2×D for blind holes
    Cutting direction right-hand
    Thread pitch 2.822 mm
    Threads per inch 9
    Thread ⌀ 22.23 mm
    Overall length L 140 mm
    Shank ⌀ Ds 18 mm
    Shank square □ 14.5 mm
    Tapping hole ⌀ 19.5 mm
    Type of threading tool Machine tap for conventional machining
    Number of clamping slots 4
    Colour ring without
    Number of cutting edges Z 4
    Thread depth 44.46 mm
    Type of product Tap

    Identification numbers & Classifications

    Article number 137860 7/8-9
    EAN / GTIN 4045197080271
    Manufacturer number 137860 7/8-9

    Application Table

    Aluminium (short chipping)
    N
    13
    Steel < 500 N/mm²
    P
    15
    Steel < 750 N/mm²
    P
    15
    Oil
     
    wet maximum
     

    Description

    Version:

    Sturdy design, with 20° right-hand chip flutes.
    HSS-E

    Application:

    For UNC uniform coarse threads ASME − B1.1.

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    Machine tap  7/8-9

    Machine tap 7/8-9

    Type of threading tool Machine tap for conventional machining Machine tap for dynamic machining
    Flank angle 60 60
    Thread pitch 2.822 2.822
    Standard DIN 376 DIN 376
    Shank Plain shank with h9 Plain shank with h9
    Tolerance class 2B 2B
    Type of product Tap Tap

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