Square End Cobalt End Mills

Square End Cobalt End Mills

2 Flute Miniature - Fractional
2 Flute Miniature - Fractional
2 Flute - Fractional
2 Flute - Fractional
4 & 6 Flute - Fractional
4 & 6 Flute - Fractional
4 & 6 Flute HD (Non CC)
4 & 6 Flute HD (Non CC)

Cobalt square end mills sit between high speed steel and carbide. They run hotter and harder than plain HSS, while staying tougher and less brittle than carbide in interrupted cuts or on less rigid machines. Stocked in 2, 4 and 6 flute fractional sizes, a miniature 2 flute range, and a heavy duty 4 and 6 flute range — uncoated or in TiALN, TiCN and TiN.

Square End vs. Ball End: A square end leaves a flat floor and a sharp internal corner, which is what slotting, pocketing and shouldering call for. For contoured or three-dimensional surfaces, use the cobalt ball end range instead.

Center Cutting vs. Non-Center Cutting: Center cutting tools have edges that meet at the axis, so they can plunge straight into solid material. Non-center cutting tools cannot — they need a pre-drilled hole or a ramped entry. Both 2 flute ranges are center cutting and the heavy duty range is not, while the 4 and 6 flute fractional range is stocked both ways, so check the specification before ordering.

Flute Count: 2 flute tools clear chips best and are the safer choice for slotting and deeper cuts in gummier materials. 4 and 6 flute tools put more cutting edges in the work for a smoother finish and greater rigidity, better suited to profiling and finishing passes.

Miniature and Heavy Duty: The miniature 2 flute range covers small-diameter detail work. The heavy duty range uses a shorter flute length for added rigidity in more aggressive cuts.

  • 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
    A61117 HTC Tool 2 2 4 7-3/4 30° 6 Uncoated Available to Order*
    $172.40
  • A65549 HTC Tool 3/4 5/8 1-1/4 7-1/8 35° 2 TiCN Available to Order*
    $95.85
  • A65550 HTC Tool 3/4 5/8 1-1/4 7-1/8 35° 2 TiALN Available to Order*
    $98.76
  • A65547 HTC Tool 3/4 3/4 1-1/2 8-1/4 35° 2 TiN Available to Order*
    $94.29
  • A65545 HTC Tool 3/4 3/4 1-1/2 8-1/4 35° 2 TiCN Available to Order*
    $102.22
  • A65546 HTC Tool 3/4 3/4 1-1/2 8-1/4 35° 2 TiALN Available to Order*
    $106.19
  • A76688 ACT 7/8 7/8 1-1/2 3-3/4 30° 2 ALTiN 8
    $91.98
  • A67326 HTC Tool 7/8 3/4 1-1/2 8-1/4 35° 2 Uncoated Available to Order*
    $98.04
  • A67329 HTC Tool 7/8 3/4 1-1/2 8-1/4 35° 2 TiN Available to Order*
    $113.88
  • A67327 HTC Tool 7/8 3/4 1-1/2 8-1/4 35° 2 TiCN Available to Order*
    $121.82
  • A67328 HTC Tool 7/8 3/4 1-1/2 8-1/4 35° 2 TiALN Available to Order*
    $125.79
  • A76665 ACT 15/16 15/16 1-1/2 3-3/4 30° 2 Uncoated 13
    $93.10
  • A76690 ACT 15/16 15/16 1-1/2 3-3/4 30° 2 ALTiN 5
    $106.49
  • A76666 ACT 1 1 1-1/2 3-3/4 30° 2 Uncoated 13
    $94.16
  • A76691 ACT 1 1 1-1/2 3-3/4 30° 2 ALTiN 9
    $99.32
  • A76667 ACT 1 1 1-5/8 4-1/8 30° 2 Uncoated 38
    $108.06
  • A76692 ACT 1 1 1-5/8 4-1/8 30° 2 ALTiN 8
    $128.97
  • A60901 HTC Tool 1 1 2 10-1/4 35° 2 Uncoated Available to Order*
    $130.41
  • A60904 HTC Tool 1 1 2 10-1/4 35° 2 TiN Available to Order*
    $153.91
  • A60902 HTC Tool 1 1 2 10-1/4 35° 2 TiCN Available to Order*
    $165.66
  • A60903 HTC Tool 1 1 2 10-1/4 35° 2 TiALN Available to Order*
    $171.54
  • A76668 ACT 1-1/8 1-1/8 1-5/8 4-1/8 30° 2 Uncoated 6
    $138.57
  • A76693 ACT 1-1/8 1-1/8 1-5/8 4-1/8 30° 2 ALTiN 6
    $115.94
  • A63413 HTC Tool 1-1/8 1 2 10-1/4 35° 2 Uncoated Available to Order*
    $163.03
  • A62983 HTC Tool 1-1/4 3/4 1-1/2 3-3/4 30° 2 TiALN Available to Order*
    $92.38
  • A76669 ACT 1-1/4 1-1/4 1-5/8 4-1/8 30° 2 Uncoated 15
    $161.66
  • A62979 HTC Tool 1-1/4 1-1/4 1-5/8 4-1/8 30° 2 TiALN Available to Order*
    $94.46
  • A62972 HTC Tool 1-1/4 1-1/4 2-1/4 4-3/4 30° 2 TiN Available to Order*
    $97.17
  • A62970 HTC Tool 1-1/4 1-1/4 2-1/4 4-3/4 30° 2 TiCN Available to Order*
    $105.18
  • A62971 HTC Tool 1-1/4 1-1/4 2-1/4 4-3/4 30° 2 TiALN Available to Order*
    $109.16
  • A62965 HTC Tool 1-1/4 1 3 5-1/2 30° 2 Uncoated Available to Order*
    $96.33
  • A62973 HTC Tool 1-1/4 1-1/4 3 5-1/2 30° 2 Uncoated Available to Order*
    $96.33
  • A62968 HTC Tool 1-1/4 1 3 5-1/2 30° 2 TiN Available to Order*
    $113.97
  • A62976 HTC Tool 1-1/4 1-1/4 3 5-1/2 30° 2 TiN Available to Order*
    $113.97
  • A62966 HTC Tool 1-1/4 1 3 5-1/2 30° 2 TiCN Available to Order*
    $122.80
  • A62974 HTC Tool 1-1/4 1-1/4 3 5-1/2 30° 2 TiCN Available to Order*
    $122.80
  • A62967 HTC Tool 1-1/4 1 3 5-1/2 30° 2 TiALN Available to Order*
    $127.20
  • A62975 HTC Tool 1-1/4 1-1/4 3 5-1/2 30° 2 TiALN Available to Order*
    $127.20
  • A62417 HTC Tool 1-1/2 3/4 1-1/2 3-3/4 30° 2 Uncoated Available to Order*
    $95.28
  • A62420 HTC Tool 1-1/2 3/4 1-1/2 3-3/4 30° 2 TiN Available to Order*
    $112.71
  • A62418 HTC Tool 1-1/2 3/4 1-1/2 3-3/4 30° 2 TiCN Available to Order*
    $121.42
  • A62419 HTC Tool 1-1/2 3/4 1-1/2 3-3/4 30° 2 TiALN Available to Order*
    $125.78
  • A62416 HTC Tool 1-1/2 1-1/4 1-5/8 4-1/8 30° 2 TiN Available to Order*
    $108.09
  • A62414 HTC Tool 1-1/2 1-1/4 1-5/8 4-1/8 30° 2 TiCN Available to Order*
    $117.65
  • A62415 HTC Tool 1-1/2 1-1/4 1-5/8 4-1/8 30° 2 TiALN Available to Order*
    $122.43
  • A62409 HTC Tool 1-1/2 1-1/4 3 5-1/2 30° 2 Uncoated Available to Order*
    $124.11
  • A62412 HTC Tool 1-1/2 1-1/4 3 5-1/2 30° 2 TiN Available to Order*
    $144.96
  • A62410 HTC Tool 1-1/2 1-1/4 3 5-1/2 30° 2 TiCN Available to Order*
    $155.40
  • A62411 HTC Tool 1-1/2 1-1/4 3 5-1/2 30° 2 TiALN Available to Order*
    $160.61
  • A61089 HTC Tool 2 3/4 1-5/8 3-7/8 30° 2 Uncoated Available to Order*
    $118.62
  • A61092 HTC Tool 2 3/4 1-5/8 3-7/8 30° 2 TiN Available to Order*
    $170.11
  • A61085 HTC Tool 2 1-1/4 1-5/8 4-1/8 30° 2 Uncoated Available to Order*
    $118.62
  • A61088 HTC Tool 2 1-1/4 1-5/8 4-1/8 30° 2 TiN Available to Order*
    $147.42
  • A61086 HTC Tool 2 1-1/4 1-5/8 4-1/8 30° 2 TiCN Available to Order*
    $161.83
  • A61087 HTC Tool 2 1-1/4 1-5/8 4-1/8 30° 2 TiALN Available to Order*
    $169.04
  • A61081 HTC Tool 2 1-1/4 3 5-1/2 30° 2 Uncoated Available to Order*
    $170.51
  • A76893 ACT 13/16 13/16 1-7/8 4-1/8 30° 4 ALTiN 20
    $95.28
  • A76894 ACT 7/8 7/8 1-7/8 4-1/8 30° 4 ALTiN 11
    $94.95
  • A76895 ACT 7/8 7/8 1-7/8 4-1/8 30° 4 ALTiN 5
    $94.87
  • A67259 HTC Tool 7/8 7/8 5 7-1/4 30° 4 TiCN Available to Order*
    $91.50
  • A67260 HTC Tool 7/8 7/8 5 7-1/4 30° 4 TiALN Available to Order*
    $95.38
  • A76859 ACT 15/16 15/16 1-7/8 4-1/8 30° 4 Uncoated 25
    $97.79
  • A76896 ACT 15/16 15/16 1-7/8 4-1/8 30° 4 ALTiN 7
    $112.19
  • A76860 ACT 1 1 1-7/8 4-1/8 30° 4 Uncoated 86
    $102.70
  • A76897 ACT 1 1 1-7/8 4-1/8 30° 4 ALTiN 15
    $107.94
  • A76861 ACT 1 1 2 4-1/2 30° 4 Uncoated 14
    $92.81
  • A76898 ACT 1 1 2 4-1/2 30° 4 ALTiN 20
    $113.64
  • A60795 HTC Tool 1 1 4 6-1/2 30° 6 TiCN Available to Order*
    $97.99
  • A60796 HTC Tool 1 1 4 6-1/2 30° 6 TiALN Available to Order*
    $101.86
  • A60799 HTC Tool 1 1 4 6-1/2 30° 4 TiALN Available to Order*
    $92.94
  • A60789 HTC Tool 1 1 6 8-1/2 30° 6 TiN Available to Order*
    $107.26
  • A60792 HTC Tool 1 1 6 8-1/2 30° 4 TiN Available to Order*
    $98.32
  • A60759 HTC Tool 1 1 6 8-1/2 30° 6 TiCN Available to Order*
    $99.42
  • A60762 HTC Tool 1 1 6 8-1/2 30° 4 TiCN Available to Order*
    $99.42
  • A60787 HTC Tool 1 1 6 8-1/2 30° 6 TiCN Available to Order*
    $116.18
  • A60790 HTC Tool 1 1 6 8-1/2 30° 4 TiCN Available to Order*
    $107.25
  • A60760 HTC Tool 1 1 6 8-1/2 30° 6 TiALN Available to Order*
    $103.90
  • A60763 HTC Tool 1 1 6 8-1/2 30° 4 TiALN Available to Order*
    $103.90
  • A60788 HTC Tool 1 1 6 8-1/2 30° 6 TiALN Available to Order*
    $120.63
  • A60791 HTC Tool 1 1 6 8-1/2 30° 4 TiALN Available to Order*
    $111.71
  • A76862 ACT 1-1/8 1-1/8 1-5/8 3-7/8 30° 6 Uncoated 2
    $137.22
  • A76899 ACT 1-1/8 1-1/8 1-5/8 3-7/8 30° 6 ALTiN 9
    $156.46
  • A76863 ACT 1-1/4 1-1/4 2 4-1/2 30° 6 Uncoated 6
    $149.04
  • A76864 ACT 1-1/4 1-1/4 2 4-1/2 30° 6 Uncoated 19
    $152.59
  • A63080 HTC Tool 1-1/4 1-1/4 2 4-1/2 30° 6 TiN Available to Order*
    $92.20
  • A63046 HTC Tool 1-1/4 1-1/4 2 4-1/2 30° 6 TiCN Available to Order*
    $92.39
  • A63050 HTC Tool 1-1/4 1-1/4 2 4-1/2 30° 4 TiCN Available to Order*
    $92.39
  • A63078 HTC Tool 1-1/4 1-1/4 2 4-1/2 30° 6 TiCN Available to Order*
    $100.20
  • A63082 HTC Tool 1-1/4 1-1/4 2 4-1/2 30° 4 TiCN Available to Order*
    $92.39
  • A76901 ACT 1-1/4 1-1/4 2 4-1/2 30° 6 ALTiN 3
    $129.21
  • A63047 HTC Tool 1-1/4 1-1/4 2 4-1/2 30° 6 TiALN Available to Order*
    $96.37
  • A63051 HTC Tool 1-1/4 1-1/4 2 4-1/2 30° 4 TiALN Available to Order*
    $96.37
  • A63079 HTC Tool 1-1/4 1-1/4 2 4-1/2 30° 6 TiALN Available to Order*
    $104.19
  • A63083 HTC Tool 1-1/4 1-1/4 2 4-1/2 30° 4 TiALN Available to Order*
    $96.37
  • A63073 HTC Tool 1-1/4 1-1/4 3 5-1/2 30° 6 TiN Available to Order*
    $104.53
  • A63076 HTC Tool 1-1/4 1-1/4 3 5-1/2 30° 4 TiN Available to Order*
    $104.53
  • A63071 HTC Tool 1-1/4 1-1/4 3 5-1/2 30° 6 TiCN Available to Order*
    $113.36
  • A63074 HTC Tool 1-1/4 1-1/4 3 5-1/2 30° 4 TiCN Available to Order*
    $113.36
  • A63072 HTC Tool 1-1/4 1-1/4 3 5-1/2 30° 6 TiALN Available to Order*
    $117.77
  • A63075 HTC Tool 1-1/4 1-1/4 3 5-1/2 30° 4 TiALN Available to Order*
    $117.77

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

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