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
    A62473 HTC Tool 1-1/2 1-1/4 3 5-1/2 30° 6 TiN Available to Order*
    $131.95
  • A62476 HTC Tool 1-1/2 1-1/4 3 5-1/2 30° 4 TiN Available to Order*
    $166.32
  • A62471 HTC Tool 1-1/2 1-1/4 3 5-1/2 30° 6 TiCN Available to Order*
    $143.09
  • A62474 HTC Tool 1-1/2 1-1/4 3 5-1/2 30° 4 TiCN Available to Order*
    $176.75
  • A62472 HTC Tool 1-1/2 1-1/4 3 5-1/2 30° 6 TiALN Available to Order*
    $148.66
  • A62475 HTC Tool 1-1/2 1-1/4 3 5-1/2 30° 4 TiALN Available to Order*
    $181.94
  • A62449 HTC Tool 1-1/2 1-1/4 4 6-1/2 30° 6 Uncoated Available to Order*
    $95.63
  • A62453 HTC Tool 1-1/2 1-1/4 4 6-1/2 30° 4 Uncoated Available to Order*
    $95.63
  • A62465 HTC Tool 1-1/2 1-1/4 4 6-1/2 30° 6 Uncoated Available to Order*
    $113.12
  • A62452 HTC Tool 1-1/2 1-1/4 4 6-1/2 30° 6 TiN Available to Order*
    $119.43
  • A62456 HTC Tool 1-1/2 1-1/4 4 6-1/2 30° 4 TiN Available to Order*
    $119.43
  • A62468 HTC Tool 1-1/2 1-1/4 4 6-1/2 30° 6 TiN Available to Order*
    $136.90
  • A62450 HTC Tool 1-1/2 1-1/4 4 6-1/2 30° 6 TiCN Available to Order*
    $131.32
  • A62454 HTC Tool 1-1/2 1-1/4 4 6-1/2 30° 4 TiCN Available to Order*
    $131.32
  • A62466 HTC Tool 1-1/2 1-1/4 4 6-1/2 30° 6 TiCN Available to Order*
    $148.81
  • A62451 HTC Tool 1-1/2 1-1/4 4 6-1/2 30° 6 TiALN Available to Order*
    $137.28
  • A62455 HTC Tool 1-1/2 1-1/4 4 6-1/2 30° 4 TiALN Available to Order*
    $137.28
  • A62467 HTC Tool 1-1/2 1-1/4 4 6-1/2 30° 6 TiALN Available to Order*
    $154.75
  • A62441 HTC Tool 1-1/2 1-1/4 6 8-1/2 30° 4 Uncoated Available to Order*
    $166.48
  • A62445 HTC Tool 1-1/2 1-1/4 6 8-1/2 30° 6 Uncoated Available to Order*
    $166.48
  • A62444 HTC Tool 1-1/2 1-1/4 6 8-1/2 30° 4 TiN Available to Order*
    $195.76
  • A62448 HTC Tool 1-1/2 1-1/4 6 8-1/2 30° 6 TiN Available to Order*
    $195.76
  • A62442 HTC Tool 1-1/2 1-1/4 6 8-1/2 30° 4 TiCN Available to Order*
    $210.42
  • A62446 HTC Tool 1-1/2 1-1/4 6 8-1/2 30° 6 TiCN Available to Order*
    $210.42
  • A62443 HTC Tool 1-1/2 1-1/4 6 8-1/2 30° 4 TiALN Available to Order*
    $217.74
  • A62447 HTC Tool 1-1/2 1-1/4 6 8-1/2 30° 6 TiALN Available to Order*
    $217.74
  • A76868 ACT 1-5/8 1-5/8 2 4-1/2 30° 6 Uncoated 8
    $323.78
  • A76905 ACT 1-5/8 1-5/8 2 4-1/2 30° 6 ALTiN 1
    $348.39
  • A61113 HTC Tool 2 1-1/4 2 4-1/2 30° 6 Uncoated Available to Order*
    $92.78
  • A61149 HTC Tool 2 1-1/4 2 4-1/2 30° 4 Uncoated Available to Order*
    $142.77
  • A61153 HTC Tool 2 1-1/4 2 4-1/2 30° 6 Uncoated Available to Order*
    $142.77
  • A76869 ACT 2 2 2 4-1/2 30° 6 Uncoated 2
    $366.91
  • A61116 HTC Tool 2 1-1/4 2 4-1/2 30° 6 TiN Available to Order*
    $121.58
  • A61152 HTC Tool 2 1-1/4 2 4-1/2 30° 4 TiN Available to Order*
    $171.57
  • A61156 HTC Tool 2 1-1/4 2 4-1/2 30° 6 TiN Available to Order*
    $171.57
  • A61114 HTC Tool 2 1-1/4 2 4-1/2 30° 6 TiCN Available to Order*
    $135.99
  • A61150 HTC Tool 2 1-1/4 2 4-1/2 30° 4 TiCN Available to Order*
    $185.98
  • A61154 HTC Tool 2 1-1/4 2 4-1/2 30° 6 TiCN Available to Order*
    $185.98
  • A76906 ACT 2 2 2 4-1/2 30° 6 ALTiN 6
    $284.23
  • A61115 HTC Tool 2 1-1/4 2 4-1/2 30° 6 TiALN Available to Order*
    $143.20
  • A61151 HTC Tool 2 1-1/4 2 4-1/2 30° 4 TiALN Available to Order*
    $193.18
  • A61155 HTC Tool 2 1-1/4 2 4-1/2 30° 6 TiALN Available to Order*
    $193.18
  • A61109 HTC Tool 2 1-1/4 4 6-1/2 30° 6 Uncoated Available to Order*
    $134.94
  • A61141 HTC Tool 2 1-1/4 4 6-1/2 30° 4 Uncoated Available to Order*
    $177.93
  • A61145 HTC Tool 2 1-1/4 4 6-1/2 30° 6 Uncoated Available to Order*
    $177.93
  • A61112 HTC Tool 2 1-1/4 4 6-1/2 30° 6 TiN Available to Order*
    $170.50
  • A61144 HTC Tool 2 1-1/4 4 6-1/2 30° 4 TiN Available to Order*
    $213.51
  • A61148 HTC Tool 2 1-1/4 4 6-1/2 30° 6 TiN Available to Order*
    $213.51
  • A61110 HTC Tool 2 1-1/4 4 6-1/2 30° 6 TiCN Available to Order*
    $188.29
  • A61142 HTC Tool 2 1-1/4 4 6-1/2 30° 4 TiCN Available to Order*
    $231.27
  • A61146 HTC Tool 2 1-1/4 4 6-1/2 30° 6 TiCN Available to Order*
    $231.27
  • A61111 HTC Tool 2 1-1/4 4 6-1/2 30° 6 TiALN Available to Order*
    $197.18
  • A61143 HTC Tool 2 1-1/4 4 6-1/2 30° 4 TiALN Available to Order*
    $240.19
  • A61147 HTC Tool 2 1-1/4 4 6-1/2 30° 6 TiALN Available to Order*
    $240.19
  • A61133 HTC Tool 2 2 4 7-3/4 30° 6 Uncoated Available to Order*
    $267.63
  • A61136 HTC Tool 2 2 4 7-3/4 30° 6 TiN Available to Order*
    $309.32
  • A61134 HTC Tool 2 2 4 7-3/4 30° 6 TiCN Available to Order*
    $330.15
  • A61135 HTC Tool 2 2 4 7-3/4 30° 6 TiALN Available to Order*
    $340.57
  • A61137 HTC Tool 2 2 6 9-3/4 30° 6 Uncoated Available to Order*
    $320.39
  • A61140 HTC Tool 2 2 6 9-3/4 30° 6 TiN Available to Order*
    $376.78
  • A61138 HTC Tool 2 2 6 9-3/4 30° 6 TiCN Available to Order*
    $404.97
  • A61139 HTC Tool 2 2 6 9-3/4 30° 6 TiALN Available to Order*
    $419.09
  • A76838 ACT 0.2813 0.2813 11/16 2-1/2 30° 4 Uncoated 13
    $36.28
  • A76875 ACT 0.2813 0.2813 11/16 2-1/2 30° 4 ALTiN 2
    $45.81
  • A76840 ACT 0.3438 0.3438 3/4 2-1/2 30° 4 Uncoated 16
    $36.91
  • A76877 ACT 0.3438 0.3438 3/4 2-1/2 30° 4 ALTiN 6
    $46.63
  • A76842 ACT 0.4063 0.4063 1 2-11/16 30° 4 Uncoated 2
    $54.09
  • A76844 ACT 0.4688 0.4688 1 2-11/16 30° 4 Uncoated 19
    $57.11
  • A76879 ACT 0.4063 0.4063 1 2-11/16 30° 4 ALTiN 12
    $60.77
  • A76881 ACT 0.4688 0.4688 1 2-11/16 30° 4 ALTiN Available to Order*
    $46.22
  • A76847 ACT 0.5313 0.5313 1-3/8 3-3/8 30° 4 Uncoated 24
    $67.01
  • A76884 ACT 0.5313 0.5313 1-3/8 3-3/8 30° 4 ALTiN 8
    $76.69

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

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