4 Flute Standard

4 Flute Standard

Atlas Cobalt 4 Flute Double End Mill

Cobalt End Mill - 4 Flute - 30° Helix - Double End - Fractional

  • Offered in stub, regular, long, and
    extra long length styles 
  • TiN coating is used in applications with lower cutting speeds than TiCN and ALTiN but often improves the tool’s lifetime by a factor of three or more. Typically used for in wide range of materials including iron based, hardened steels, and stainless steels.
  • Made in the USA
  • TiCN coating is a general purpose coating that offers improved wear resistance to abrasive, adhesive, or difficult to machine materials such as cast iron, aluminum alloys, steels, copper and more. 
  • ALTIN is a high performance coating for milling, tapping and drilling in stainless steels, carbon steels, alloy steels, titanium and cast iron. This coating is extremely heat resistant and can be used with or without coolant. 

Have a question or need help?

Call Customer Service at 908-98-ATLAS or email: Sales@atlascuttingtools.com
  • Compare SKU Vendor Size (D1) Shank Diameter (D2) Flute Length (L2) Reach (L3) Overall Length (L1) Length Type Corner Radius (R) Included Angle Taper Angle Helix Angle Number of Flutes Weldon Flats Flats Coating In Stock Price Quantity
    A68245 HTC Tool 21/64 3/8 3/4 3-1/2 30° 4 Uncoated Available to Order*
    $23.17
  • A68248 HTC Tool 21/64 3/8 3/4 3-1/2 30° 4 TiN Available to Order*
    $26.49
  • A68246 HTC Tool 21/64 3/8 3/4 3-1/2 30° 4 TiCN Available to Order*
    $28.13
  • A68247 HTC Tool 21/64 3/8 3/4 3-1/2 30° 4 TiALN Available to Order*
    $28.97
  • A61953 HTC Tool 11/32 3/8 3/4 3-1/2 30° 4 Uncoated Available to Order*
    $19.72
  • A61956 HTC Tool 11/32 3/8 3/4 3-1/2 30° 4 TiN Available to Order*
    $23.02
  • A61954 HTC Tool 11/32 3/8 3/4 3-1/2 30° 4 TiCN Available to Order*
    $24.70
  • A61955 HTC Tool 11/32 3/8 3/4 3-1/2 30° 4 TiALN Available to Order*
    $25.51
  • A68297 HTC Tool 23/64 3/8 3/4 3-1/2 30° 4 Uncoated Available to Order*
    $19.74
  • A68300 HTC Tool 23/64 3/8 3/4 3-1/2 30° 4 TiN Available to Order*
    $23.08
  • A68298 HTC Tool 23/64 3/8 3/4 3-1/2 30° 4 TiCN Available to Order*
    $24.71
  • A68299 HTC Tool 23/64 3/8 3/4 3-1/2 30° 4 TiALN Available to Order*
    $25.54
  • A68313 HTC Tool 23/64 3/8 3/4 3-1/2 30° 4 Uncoated Available to Order*
    $23.17
  • A68316 HTC Tool 23/64 3/8 3/4 3-1/2 30° 4 TiN Available to Order*
    $26.49
  • A68314 HTC Tool 23/64 3/8 3/4 3-1/2 30° 4 TiCN Available to Order*
    $28.13
  • A68315 HTC Tool 23/64 3/8 3/4 3-1/2 30° 4 TiALN Available to Order*
    $28.97
  • A65932 HTC Tool 3/8 3/8 3/4 3-1/2 30° 4 Uncoated Available to Order*
    $18.37
  • A65935 HTC Tool 3/8 3/8 3/4 3-1/2 30° 4 TiN Available to Order*
    $21.69
  • A65933 HTC Tool 3/8 3/8 3/4 3-1/2 30° 4 TiCN Available to Order*
    $23.36
  • A65934 HTC Tool 3/8 3/8 3/4 3-1/2 30° 4 TiALN Available to Order*
    $24.18
  • A68365 HTC Tool 25/64 1/2 1 4-1/8 30° 4 Uncoated Available to Order*
    $28.63
  • A68368 HTC Tool 25/64 1/2 1 4-1/8 30° 4 TiN Available to Order*
    $34.64
  • A68366 HTC Tool 25/64 1/2 1 4-1/8 30° 4 TiCN Available to Order*
    $37.65
  • A68367 HTC Tool 25/64 1/2 1 4-1/8 30° 4 TiALN Available to Order*
    $39.13
  • A68377 HTC Tool 25/64 1/2 1 4-1/8 30° 4 Uncoated Available to Order*
    $34.16
  • A67869 HTC Tool 13/32 1/2 1 4-1/8 30° 4 Uncoated Available to Order*
    $24.35
  • A67872 HTC Tool 13/32 1/2 1 4-1/8 30° 4 TiN Available to Order*
    $30.37
  • A67870 HTC Tool 13/32 1/2 1 4-1/8 30° 4 TiCN Available to Order*
    $33.37
  • A67871 HTC Tool 13/32 1/2 1 4-1/8 30° 4 TiALN Available to Order*
    $34.86
  • A67889 HTC Tool 13/32 1/2 1 4-1/8 30° 4 Uncoated Available to Order*
    $29.36
  • A67892 HTC Tool 13/32 1/2 1 4-1/8 30° 4 TiN Available to Order*
    $35.35
  • A67890 HTC Tool 13/32 1/2 1 4-1/8 30° 4 TiCN Available to Order*
    $38.36
  • A67891 HTC Tool 13/32 1/2 1 4-1/8 30° 4 TiALN Available to Order*
    $39.88
  • A68417 HTC Tool 27/64 1/2 1 4-1/8 30° 4 Uncoated Available to Order*
    $28.63
  • A68420 HTC Tool 27/64 1/2 1 4-1/8 30° 4 TiN Available to Order*
    $34.64
  • A68418 HTC Tool 27/64 1/2 1 4-1/8 30° 4 TiCN Available to Order*
    $37.65
  • A68419 HTC Tool 27/64 1/2 1 4-1/8 30° 4 TiALN Available to Order*
    $39.13
  • A68437 HTC Tool 27/64 1/2 1 4-1/8 30° 4 Uncoated Available to Order*
    $34.16
  • A67429 HTC Tool 7/16 1/2 1 4-1/8 30° 4 Uncoated Available to Order*
    $21.06
  • A67432 HTC Tool 7/16 1/2 1 4-1/8 30° 4 TiN Available to Order*
    $27.08
  • A67430 HTC Tool 7/16 1/2 1 4-1/8 30° 4 TiCN Available to Order*
    $30.08
  • A67431 HTC Tool 7/16 1/2 1 4-1/8 30° 4 TiALN Available to Order*
    $31.57
  • A67477 HTC Tool 7/16 1/2 1 4-1/8 30° 4 Uncoated Available to Order*
    $27.43
  • A67480 HTC Tool 7/16 1/2 1 4-1/8 30° 4 TiN Available to Order*
    $33.44
  • A67478 HTC Tool 7/16 1/2 1 4-1/8 30° 4 TiCN Available to Order*
    $36.43
  • A67479 HTC Tool 7/16 1/2 1 4-1/8 30° 4 TiALN Available to Order*
    $37.93
  • A68473 HTC Tool 29/64 1/2 1 4-1/8 30° 4 Uncoated Available to Order*
    $28.63
  • A68476 HTC Tool 29/64 1/2 1 4-1/8 30° 4 TiN Available to Order*
    $34.64
  • A68474 HTC Tool 29/64 1/2 1 4-1/8 30° 4 TiCN Available to Order*
    $37.65
  • A68475 HTC Tool 29/64 1/2 1 4-1/8 30° 4 TiALN Available to Order*
    $39.13
  • A68493 HTC Tool 29/64 1/2 1 4-1/8 30° 4 Uncoated Available to Order*
    $34.16
  • A68017 HTC Tool 15/32 1/2 1 4-1/8 30° 4 Uncoated Available to Order*
    $22.78
  • A68020 HTC Tool 15/32 1/2 1 4-1/8 30° 4 TiN Available to Order*
    $28.80
  • A68018 HTC Tool 15/32 1/2 1 4-1/8 30° 4 TiCN Available to Order*
    $31.78
  • A68019 HTC Tool 15/32 1/2 1 4-1/8 30° 4 TiALN Available to Order*
    $33.28
  • A68029 HTC Tool 15/32 1/2 1 4-1/8 30° 4 Uncoated Available to Order*
    $34.16
  • A68537 HTC Tool 31/64 1/2 1 4-1/8 30° 4 Uncoated Available to Order*
    $29.95
  • A68540 HTC Tool 31/64 1/2 1 4-1/8 30° 4 TiN Available to Order*
    $35.96
  • A68538 HTC Tool 31/64 1/2 1 4-1/8 30° 4 TiCN Available to Order*
    $38.98
  • A68557 HTC Tool 31/64 1/2 1 4-1/8 30° 4 Uncoated Available to Order*
    $34.16
  • A63885 HTC Tool 1/2 1/2 1 4-1/8 30° 4 Uncoated Available to Order*
    $21.26
  • A63888 HTC Tool 1/2 1/2 1 4-1/8 30° 4 TiN Available to Order*
    $27.28
  • A63886 HTC Tool 1/2 1/2 1 4-1/8 30° 4 TiCN Available to Order*
    $30.27
  • A63887 HTC Tool 1/2 1/2 1 4-1/8 30° 4 TiALN Available to Order*
    $31.77
  • A63981 HTC Tool 1/2 1/2 1 4-1/8 30° 4 Uncoated Available to Order*
    $28.12
  • A63984 HTC Tool 1/2 1/2 1 4-1/8 30° 4 TiN Available to Order*
    $34.12
  • A63982 HTC Tool 1/2 1/2 1 4-1/8 30° 4 TiCN Available to Order*
    $37.10
  • A63983 HTC Tool 1/2 1/2 1 4-1/8 30° 4 TiALN Available to Order*
    $38.62
  • A67541 HTC Tool 9/16 5/8 1-3/8 5 30° 4 Uncoated Available to Order*
    $30.27
  • A67544 HTC Tool 9/16 5/8 1-3/8 5 30° 4 TiN Available to Order*
    $39.02
  • A67581 HTC Tool 9/16 5/8 1-3/8 5 30° 4 Uncoated Available to Order*
    $36.85
  • A68137 HTC Tool 19/32 5/8 1-3/8 5 30° 4 Uncoated Available to Order*
    $39.62
  • A66611 HTC Tool 5/8 5/8 1-3/8 5 30° 4 Uncoated Available to Order*
    $28.42
  • A66614 HTC Tool 5/8 5/8 1-3/8 5 30° 4 TiN Available to Order*
    $37.16
  • A66719 HTC Tool 5/8 5/8 1-3/8 5 30° 4 Uncoated Available to Order*
    $35.84
  • A65344 HTC Tool 3/4 3/4 1-5/8 5-5/8 30° 4 Uncoated Available to Order*
    $36.46

* Lead times can vary from 1–10 business days. Call (908) 98-ATLAS or email sales@atlascuttingtools.com for details.

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