Spiral Flute - Semi Bottoming

Spiral Flute - Semi Bottoming

Atlas High Speed Steel (HSS) Spiral Flute - Semi Bottoming

General Purpose - Spiral Flute - Semi Bottoming - High Speed Steel

  • Optimized for relatively deep hole tapping in copper, brass, aluminum, and other soft ductile materials
  • ZrN coating offers increased speed rates and prolonged tool life
  • 52° Helix
  • Slightly longer chamfer distributes cutting over greater number of teeth for increased production
  • Can be used for plug or bottoming applications
  • Made in the USA

Speeds and Feed Info

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Call Customer Service at 908-98-ATLAS or email: Sales@atlascuttingtools.com
  • Size Shank Diameter Overall Length H Limit D Limit NC / NF Square Size Square Length Thread Length Number of Lube Grooves Number of Flutes Style Material Coating In Stock Sku Price Quantity
    3-48 0.141 1-13/16 H2 2 High Spiral HSS Uncoated 20
    A55807
    $25.65
  • 3-56 0.141 1-13/16 H2 2 High Spiral HSS Uncoated 16
    A55808
    $25.65
  • 4-40 0.141 1-7/8 H2 2 High Spiral HSS Uncoated 34
    A55809
    $21.11
  • 4-48 0.141 1-7/8 H2 2 High Spiral HSS Uncoated 41
    A55810
    $21.11
  • 5-40 0.141 1-15/16 H3 2 High Spiral HSS Uncoated 12
    A55811
    $21.11
  • 5-44 0.141 1-15/16 H3 2 High Spiral HSS Uncoated 17
    A55812
    $21.07
  • 6-32 0.141 2 H3 2 High Spiral HSS Uncoated 61
    A55813
    $17.12
  • 6-40 0.14 2 H3 2 High Spiral HSS Uncoated 100
    A55814
    $17.12
  • 8-32 0.168 2-1/8 H3 3 High Spiral HSS Uncoated 50
    A55815
    $17.12
  • 8-36 0.168 2-1/8 H3 3 High Spiral HSS Uncoated 21
    A55816
    $17.12
  • 10-24 0.194 2-3/8 H3 3 High Spiral HSS Uncoated 24
    A55817
    $17.12
  • 10-32 0.194 2-3/8 H3 3 High Spiral HSS Uncoated 22
    A55818
    $17.12
  • 12-24 0.22 2-3/8 H3 3 High Spiral HSS Uncoated 100
    A55819
    $18.43
  • 12-28 0.22 2-3/8 H3 3 High Spiral HSS Uncoated 20
    A55820
    $18.43
  • 1/4-20 0.255 2-1/2 H3 3 High Spiral HSS Uncoated 26
    A55821
    $18.43
  • 1/4-28 0.255 2-1/2 H3 3 High Spiral HSS Uncoated 24
    A55822
    $18.43
  • 5/16-18 0.318 2-23/32 H3 3 High Spiral HSS Uncoated 23
    A55823
    $23.05
  • 5/16-24 0.318 2-23/32 H3 3 High Spiral HSS Uncoated 46
    A55824
    $23.05
  • 3/8-16 0.381 2-15/16 H3 3 High Spiral HSS Uncoated 43
    A55825
    $26.56
  • 3/8-24 0.381 2-15/16 H3 3 High Spiral HSS Uncoated 16
    A55826
    $26.56
  • 7/16-14 0.323 3-5/32 H3 3 High Spiral HSS Uncoated 22
    A55827
    $39.83
  • 7/16-20 0.323 3-5/32 H3 3 High Spiral HSS Uncoated 22
    A55828
    $39.83
  • 1/2-13 0.367 3-3/8 H3 3 High Spiral HSS Uncoated 21
    A55829
    $47.54
  • 1/2-20 0.367 3-3/8 H3 3 High Spiral HSS Uncoated 22
    A55830
    $47.54
  • 9/16-12 0.429 3-19/32 H3 4 High Spiral HSS Uncoated 29
    A55831
    $79.29
  • 9/16-18 0.429 3-19/32 H3 4 High Spiral HSS Uncoated 17
    A55832
    $79.29
  • 5/8-11 0.48 3-13/16 H3 4 High Spiral HSS Uncoated 16
    A55833
    $104.07
  • 5/8-18 0.48 3-13/16 H3 4 High Spiral HSS Uncoated 49
    A55834
    $104.07
  • 3/4-10 0.59 4-1/4 H3 4 High Spiral HSS Uncoated 23
    A55835
    $133.14
  • 3/4-16 0.59 4-1/4 H3 4 High Spiral HSS Uncoated 21
    A55836
    $133.14
  • Total: items /

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