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
    A76660 ACT 13/16 13/16 1-1/2 3-5/8 30° 2 Uncoated 36
    $68.56
  • A63966 HTC Tool 1/2 1/2 2 4 30° 4 TiCN Available to Order*
    $33.47
  • A76685 ACT 13/16 13/16 1-1/2 3-5/8 30° 2 ALTiN 8
    $61.27
  • A63947 HTC Tool 1/2 1/2 2 4 30° 4 TiALN Available to Order*
    $30.22
  • A76661 ACT 13/16 13/16 1-1/2 3-3/4 30° 2 Uncoated 22
    $69.01
  • A63964 HTC Tool 1/2 1/2 2 4 30° 6 TiALN Available to Order*
    $34.98
  • A76686 ACT 13/16 13/16 1-1/2 3-3/4 30° 2 ALTiN 7
    $87.90
  • A63967 HTC Tool 1/2 1/2 2 4 30° 4 TiALN Available to Order*
    $34.98
  • A67198 HTC Tool 7/8 7/8 1-1/2 3-3/4 30° 2 Uncoated Available to Order*
    $32.58
  • A63941 HTC Tool 1/2 1/2 3 5 30° 4 Uncoated Available to Order*
    $22.38
  • A67202 HTC Tool 7/8 3/4 1-1/2 3-3/4 30° 2 Uncoated Available to Order*
    $33.88
  • A63953 HTC Tool 1/2 1/2 3 5 30° 4 Uncoated Available to Order*
    $27.42
  • A76662 ACT 7/8 7/8 1-1/2 3-3/4 30° 2 Uncoated 5
    $75.86
  • A63954 HTC Tool 1/2 1/2 3 5 30° 6 Uncoated Available to Order*
    $28.30
  • A76663 ACT 7/8 7/8 1-1/2 3-3/4 30° 2 Uncoated 23
    $75.86
  • A63944 HTC Tool 1/2 1/2 3 5 30° 4 TiN Available to Order*
    $29.66
  • A67201 HTC Tool 7/8 7/8 1-1/2 3-3/4 30° 2 TiN Available to Order*
    $42.92
  • A63957 HTC Tool 1/2 1/2 3 5 30° 6 TiN Available to Order*
    $35.58
  • A67205 HTC Tool 7/8 3/4 1-1/2 3-3/4 30° 2 TiN Available to Order*
    $44.24
  • A63960 HTC Tool 1/2 1/2 3 5 30° 4 TiN Available to Order*
    $34.70
  • A67199 HTC Tool 7/8 7/8 1-1/2 3-3/4 30° 2 TiCN Available to Order*
    $48.09
  • A63942 HTC Tool 1/2 1/2 3 5 30° 4 TiCN Available to Order*
    $33.33
  • A67203 HTC Tool 7/8 3/4 1-1/2 3-3/4 30° 2 TiCN Available to Order*
    $49.39
  • A63955 HTC Tool 1/2 1/2 3 5 30° 6 TiCN Available to Order*
    $39.24
  • A76687 ACT 7/8 7/8 1-1/2 3-3/4 30° 2 ALTiN 21
    $90.25
  • A63958 HTC Tool 1/2 1/2 3 5 30° 4 TiCN Available to Order*
    $38.37
  • A76688 ACT 7/8 7/8 1-1/2 3-3/4 30° 2 ALTiN 8
    $91.98
  • A63943 HTC Tool 1/2 1/2 3 5 30° 4 TiALN Available to Order*
    $35.14
  • A67200 HTC Tool 7/8 7/8 1-1/2 3-3/4 30° 2 TiALN Available to Order*
    $50.67
  • A63956 HTC Tool 1/2 1/2 3 5 30° 6 TiALN Available to Order*
    $41.08
  • A67204 HTC Tool 7/8 3/4 1-1/2 3-3/4 30° 2 TiALN Available to Order*
    $51.99
  • A63959 HTC Tool 1/2 1/2 3 5 30° 4 TiALN Available to Order*
    $40.18
  • A67577 HTC Tool 9/16 1/2 1-3/8 3-3/8 30° 4 Uncoated Available to Order*
    $26.09
  • A67326 HTC Tool 7/8 3/4 1-1/2 8-1/4 35° 2 Uncoated Available to Order*
    $98.04
  • A76848 ACT 9/16 9/16 1-3/8 3-3/8 30° 4 Uncoated 78
    $42.84
  • A67329 HTC Tool 7/8 3/4 1-1/2 8-1/4 35° 2 TiN Available to Order*
    $113.88
  • A67580 HTC Tool 9/16 1/2 1-3/8 3-3/8 30° 4 TiN Available to Order*
    $32.06
  • A67327 HTC Tool 7/8 3/4 1-1/2 8-1/4 35° 2 TiCN Available to Order*
    $121.82
  • A67578 HTC Tool 9/16 1/2 1-3/8 3-3/8 30° 4 TiCN Available to Order*
    $35.05
  • A67328 HTC Tool 7/8 3/4 1-1/2 8-1/4 35° 2 TiALN Available to Order*
    $125.79
  • A76885 ACT 9/16 9/16 1-3/8 3-3/8 30° 4 ALTiN 13
    $55.04
  • A67194 HTC Tool 7/8 7/8 2 4-1/4 30° 2 Uncoated Available to Order*
    $40.39
  • A67579 HTC Tool 9/16 1/2 1-3/8 3-3/8 30° 4 TiALN Available to Order*
    $36.54
  • A67197 HTC Tool 7/8 7/8 2 4-1/4 30° 2 TiN Available to Order*
    $52.57
  • A76849 ACT 5/8 5/8 1-3/8 3-3/8 30° 4 Uncoated 53
    $48.77
  • A67195 HTC Tool 7/8 7/8 2 4-1/4 30° 2 TiCN Available to Order*
    $58.64
  • A76886 ACT 5/8 5/8 1-3/8 3-3/8 30° 4 ALTiN 16
    $59.98
  • A67196 HTC Tool 7/8 7/8 2 4-1/4 30° 2 TiALN Available to Order*
    $61.70
  • A76664 ACT 15/16 15/16 1-1/2 3-5/8 30° 2 Uncoated 8
    $87.33
  • A66687 HTC Tool 5/8 5/8 1-5/8 3-3/4 30° 4 Uncoated Available to Order*
    $21.78
  • A76689 ACT 15/16 15/16 1-1/2 3-5/8 30° 2 ALTiN 18
    $71.58
  • A66711 HTC Tool 5/8 5/8 1-5/8 3-3/4 30° 4 Uncoated Available to Order*
    $24.98
  • A76665 ACT 15/16 15/16 1-1/2 3-3/4 30° 2 Uncoated 13
    $93.10
  • A66712 HTC Tool 5/8 5/8 1-5/8 3-3/4 30° 6 Uncoated Available to Order*
    $28.42
  • A76850 ACT 5/8 5/8 1-5/8 3-3/4 30° 4 Uncoated Available to Order*
    $55.37
  • A76690 ACT 15/16 15/16 1-1/2 3-3/4 30° 2 ALTiN 5
    $106.49
  • A66690 HTC Tool 5/8 5/8 1-5/8 3-3/4 30° 4 TiN Available to Order*
    $27.73
  • A60689 HTC Tool 1 1 1-1/2 3-3/4 30° 2 Uncoated Available to Order*
    $38.99
  • A76666 ACT 1 1 1-1/2 3-3/4 30° 2 Uncoated 13
    $94.16
  • A66715 HTC Tool 5/8 5/8 1-5/8 3-3/4 30° 6 TiN Available to Order*
    $34.39
  • A66718 HTC Tool 5/8 5/8 1-5/8 3-3/4 30° 4 TiN Available to Order*
    $30.93
  • A60692 HTC Tool 1 1 1-1/2 3-3/4 30° 2 TiN Available to Order*
    $51.01
  • A66688 HTC Tool 5/8 5/8 1-5/8 3-3/4 30° 4 TiCN Available to Order*
    $30.72
  • A60690 HTC Tool 1 1 1-1/2 3-3/4 30° 2 TiCN Available to Order*
    $57.03
  • A76691 ACT 1 1 1-1/2 3-3/4 30° 2 ALTiN 9
    $99.32
  • A66713 HTC Tool 5/8 5/8 1-5/8 3-3/4 30° 6 TiCN Available to Order*
    $37.37
  • A66716 HTC Tool 5/8 5/8 1-5/8 3-3/4 30° 4 TiCN Available to Order*
    $33.94
  • A60691 HTC Tool 1 1 1-1/2 3-3/4 30° 2 TiALN Available to Order*
    $60.03
  • A76887 ACT 5/8 5/8 1-5/8 3-3/4 30° 4 ALTiN 25
    $66.67
  • A60685 HTC Tool 1 1 1-5/8 4-1/8 30° 2 Uncoated Available to Order*
    $36.35
  • A76667 ACT 1 1 1-5/8 4-1/8 30° 2 Uncoated 38
    $108.06
  • A66689 HTC Tool 5/8 5/8 1-5/8 3-3/4 30° 4 TiALN Available to Order*
    $32.21
  • A66714 HTC Tool 5/8 5/8 1-5/8 3-3/4 30° 6 TiALN Available to Order*
    $38.86
  • A60688 HTC Tool 1 1 1-5/8 4-1/8 30° 2 TiN Available to Order*
    $48.84
  • A66717 HTC Tool 5/8 5/8 1-5/8 3-3/4 30° 4 TiALN Available to Order*
    $35.41
  • A60686 HTC Tool 1 1 1-5/8 4-1/8 30° 2 TiCN Available to Order*
    $55.04
  • A76692 ACT 1 1 1-5/8 4-1/8 30° 2 ALTiN 8
    $128.97
  • A66707 HTC Tool 5/8 5/8 1-7/8 4 30° 4 Uncoated Available to Order*
    $24.20
  • A66710 HTC Tool 5/8 5/8 1-7/8 4 30° 4 TiN Available to Order*
    $31.74
  • A60687 HTC Tool 1 1 1-5/8 4-1/8 30° 2 TiALN Available to Order*
    $58.16
  • A66708 HTC Tool 5/8 5/8 1-7/8 4 30° 4 TiCN Available to Order*
    $35.49
  • A60901 HTC Tool 1 1 2 10-1/4 35° 2 Uncoated Available to Order*
    $130.41
  • A66709 HTC Tool 5/8 5/8 1-7/8 4 30° 4 TiALN Available to Order*
    $37.37
  • A60904 HTC Tool 1 1 2 10-1/4 35° 2 TiN Available to Order*
    $153.91
  • A66683 HTC Tool 5/8 5/8 2-1/2 4-5/8 30° 4 Uncoated Available to Order*
    $27.42
  • A60902 HTC Tool 1 1 2 10-1/4 35° 2 TiCN Available to Order*
    $165.66
  • A66699 HTC Tool 5/8 5/8 2-1/2 4-5/8 30° 4 Uncoated Available to Order*
    $32.58
  • A60903 HTC Tool 1 1 2 10-1/4 35° 2 TiALN Available to Order*
    $171.54
  • A66700 HTC Tool 5/8 5/8 2-1/2 4-5/8 30° 6 Uncoated Available to Order*
    $32.58
  • A60681 HTC Tool 1 1 2-1/4 4-3/4 30° 2 Uncoated Available to Order*
    $57.17
  • A66686 HTC Tool 5/8 5/8 2-1/2 4-5/8 30° 4 TiN Available to Order*
    $34.93
  • A60684 HTC Tool 1 1 2-1/4 4-3/4 30° 2 TiN Available to Order*
    $69.66
  • A66703 HTC Tool 5/8 5/8 2-1/2 4-5/8 30° 6 TiN Available to Order*
    $40.11
  • A60682 HTC Tool 1 1 2-1/4 4-3/4 30° 2 TiCN Available to Order*
    $75.87
  • A66706 HTC Tool 5/8 5/8 2-1/2 4-5/8 30° 4 TiN Available to Order*
    $40.11
  • A60683 HTC Tool 1 1 2-1/4 4-3/4 30° 2 TiALN Available to Order*
    $78.99
  • A66684 HTC Tool 5/8 5/8 2-1/2 4-5/8 30° 4 TiCN Available to Order*
    $38.68
  • A60677 HTC Tool 1 1 3 5-1/2 30° 2 Uncoated Available to Order*
    $58.31
  • A66701 HTC Tool 5/8 5/8 2-1/2 4-5/8 30° 6 TiCN Available to Order*
    $43.86
  • A60680 HTC Tool 1 1 3 5-1/2 30° 2 TiN Available to Order*
    $71.94

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

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