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
    A68380 HTC Tool 25/64 1/2 1 4-1/8 30° 4 TiN Available to Order*
    $40.17
  • A68378 HTC Tool 25/64 1/2 1 4-1/8 30° 4 TiCN Available to Order*
    $43.18
  • A68379 HTC Tool 25/64 1/2 1 4-1/8 30° 4 TiALN Available to Order*
    $44.66
  • A68440 HTC Tool 27/64 1/2 1 4-1/8 30° 4 TiN Available to Order*
    $40.17
  • A68438 HTC Tool 27/64 1/2 1 4-1/8 30° 4 TiCN Available to Order*
    $43.18
  • A68439 HTC Tool 27/64 1/2 1 4-1/8 30° 4 TiALN Available to Order*
    $44.66
  • A68496 HTC Tool 29/64 1/2 1 4-1/8 30° 4 TiN Available to Order*
    $40.17
  • A68494 HTC Tool 29/64 1/2 1 4-1/8 30° 4 TiCN Available to Order*
    $43.18
  • A68495 HTC Tool 29/64 1/2 1 4-1/8 30° 4 TiALN Available to Order*
    $44.66
  • A68032 HTC Tool 15/32 1/2 1 4-1/8 30° 4 TiN Available to Order*
    $40.17
  • A68030 HTC Tool 15/32 1/2 1 4-1/8 30° 4 TiCN Available to Order*
    $43.18
  • A68031 HTC Tool 15/32 1/2 1 4-1/8 30° 4 TiALN Available to Order*
    $44.66
  • A68539 HTC Tool 31/64 1/2 1 4-1/8 30° 4 TiALN Available to Order*
    $40.45
  • A68560 HTC Tool 31/64 1/2 1 4-1/8 30° 4 TiN Available to Order*
    $40.17
  • A68558 HTC Tool 31/64 1/2 1 4-1/8 30° 4 TiCN Available to Order*
    $43.18
  • A68559 HTC Tool 31/64 1/2 1 4-1/8 30° 4 TiALN Available to Order*
    $44.66
  • A68089 HTC Tool 17/32 5/8 1-3/8 5 30° 4 Uncoated Available to Order*
    $45.81
  • A68092 HTC Tool 17/32 5/8 1-3/8 5 30° 4 TiN Available to Order*
    $54.53
  • A68090 HTC Tool 17/32 5/8 1-3/8 5 30° 4 TiCN Available to Order*
    $58.90
  • A68091 HTC Tool 17/32 5/8 1-3/8 5 30° 4 TiALN Available to Order*
    $61.09
  • A67542 HTC Tool 9/16 5/8 1-3/8 5 30° 4 TiCN Available to Order*
    $43.36
  • A67543 HTC Tool 9/16 5/8 1-3/8 5 30° 4 TiALN Available to Order*
    $45.56
  • A67584 HTC Tool 9/16 5/8 1-3/8 5 30° 4 TiN Available to Order*
    $45.60
  • A67582 HTC Tool 9/16 5/8 1-3/8 5 30° 4 TiCN Available to Order*
    $49.96
  • A67583 HTC Tool 9/16 5/8 1-3/8 5 30° 4 TiALN Available to Order*
    $52.13
  • A68140 HTC Tool 19/32 5/8 1-3/8 5 30° 4 TiN Available to Order*
    $48.35
  • A68138 HTC Tool 19/32 5/8 1-3/8 5 30° 4 TiCN Available to Order*
    $52.70
  • A68139 HTC Tool 19/32 5/8 1-3/8 5 30° 4 TiALN Available to Order*
    $54.88
  • A68157 HTC Tool 19/32 5/8 1-3/8 5 30° 4 Uncoated Available to Order*
    $45.81
  • A68160 HTC Tool 19/32 5/8 1-3/8 5 30° 4 TiN Available to Order*
    $54.53
  • A68158 HTC Tool 19/32 5/8 1-3/8 5 30° 4 TiCN Available to Order*
    $58.90
  • A68159 HTC Tool 19/32 5/8 1-3/8 5 30° 4 TiALN Available to Order*
    $61.09
  • A66612 HTC Tool 5/8 5/8 1-3/8 5 30° 4 TiCN Available to Order*
    $41.51
  • A66613 HTC Tool 5/8 5/8 1-3/8 5 30° 4 TiALN Available to Order*
    $43.71
  • A66722 HTC Tool 5/8 5/8 1-3/8 5 30° 4 TiN Available to Order*
    $44.57
  • A66720 HTC Tool 5/8 5/8 1-3/8 5 30° 4 TiCN Available to Order*
    $48.93
  • A66721 HTC Tool 5/8 5/8 1-3/8 5 30° 4 TiALN Available to Order*
    $51.10
  • A68205 HTC Tool 21/32 3/4 1-5/8 5-5/8 30° 4 Uncoated Available to Order*
    $49.69
  • A68208 HTC Tool 21/32 3/4 1-5/8 5-5/8 30° 4 TiN Available to Order*
    $59.69
  • A68225 HTC Tool 21/32 3/4 1-5/8 5-5/8 30° 4 Uncoated Available to Order*
    $58.51
  • A67613 HTC Tool 11/16 3/4 1-5/8 5-5/8 30° 4 Uncoated Available to Order*
    $47.18
  • A67616 HTC Tool 11/16 3/4 1-5/8 5-5/8 30° 4 TiN Available to Order*
    $57.18
  • A67614 HTC Tool 11/16 3/4 1-5/8 5-5/8 30° 4 TiCN Available to Order*
    $62.16
  • A67629 HTC Tool 11/16 3/4 1-5/8 5-5/8 30° 4 Uncoated Available to Order*
    $58.51
  • A68269 HTC Tool 23/32 3/4 1-5/8 5-5/8 30° 4 Uncoated Available to Order*
    $49.69
  • A68272 HTC Tool 23/32 3/4 1-5/8 5-5/8 30° 4 TiN Available to Order*
    $59.69
  • A68289 HTC Tool 23/32 3/4 1-5/8 5-5/8 30° 4 Uncoated Available to Order*
    $58.51
  • A65347 HTC Tool 3/4 3/4 1-5/8 5-5/8 30° 4 TiN Available to Order*
    $46.46
  • A65345 HTC Tool 3/4 3/4 1-5/8 5-5/8 30° 4 TiCN Available to Order*
    $51.45
  • A65346 HTC Tool 3/4 3/4 1-5/8 5-5/8 30° 4 TiALN Available to Order*
    $53.95
  • A65468 HTC Tool 3/4 3/4 1-5/8 5-5/8 30° 4 Uncoated Available to Order*
    $45.28
  • A65471 HTC Tool 3/4 3/4 1-5/8 5-5/8 30° 4 TiN Available to Order*
    $55.29
  • A65469 HTC Tool 3/4 3/4 1-5/8 5-5/8 30° 4 TiCN Available to Order*
    $60.27
  • A65470 HTC Tool 3/4 3/4 1-5/8 5-5/8 30° 4 TiALN Available to Order*
    $62.78
  • A68341 HTC Tool 25/32 7/8 1-7/8 6-1/8 30° 4 Uncoated Available to Order*
    $54.84
  • A67809 HTC Tool 13/16 7/8 1-7/8 6-1/8 30° 4 Uncoated Available to Order*
    $52.99
  • A68393 HTC Tool 27/32 7/8 1-7/8 6-1/8 30° 4 Uncoated Available to Order*
    $54.84
  • A67190 HTC Tool 7/8 7/8 1-7/8 6-1/8 30° 4 Uncoated Available to Order*
    $47.77
  • A67193 HTC Tool 7/8 7/8 1-7/8 6-1/8 30° 4 TiN Available to Order*
    $62.22
  • A67270 HTC Tool 7/8 7/8 1-7/8 6-1/8 30° 4 Uncoated Available to Order*
    $62.14
  • A60673 HTC Tool 1 1 1-7/8 6-3/8 30° 4 Uncoated Available to Order*
    $57.25

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

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