Cobalt Ball End Mills

Cobalt Ball End Mills

2 Flute - Fractional
2 Flute - Fractional
4 & 6 Flute - Fractional
4 & 6 Flute - Fractional

Cobalt ball end mills carry a fully rounded tip rather than a flat one, so the cutting edge follows a curve instead of leaving a flat floor and a sharp corner. That makes them the tool for 3D contouring, die and mold work, and any surface that is not flat. Stocked in 2 flute and 4 and 6 flute fractional ranges, uncoated or in TiALN, TiCN and TiN.

Ball End vs. Square End: Use a ball end when the finished surface is curved, filleted or three-dimensional. For flat floors, slots and square shoulders, the cobalt square end range is the correct choice.

Flute Count: The 2 flute range clears chips more freely and is the better choice for deeper contour passes and roughing in softer alloys. The 4 and 6 flute range leaves a finer scallop between passes, which suits finishing work and harder materials.

Helix Angle: The 2 flute range is stocked at both 30° and 40° helix — the higher angle shears more gradually for a smoother finish, the lower angle is more rigid under load. The 4 and 6 flute range is 30° throughout.

Why Cobalt: Cobalt holds its edge at higher temperatures than plain high speed steel, so these tools tolerate faster speeds and tougher materials — stainless, titanium and hardened alloys. They remain tougher and less prone to chipping than carbide, which makes them a safer choice in interrupted cuts, older machines, or setups that are not perfectly rigid.

  • 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
    A63839 HTC Tool 1/2 1/2 1 3 30° 2 TiALN Available to Order*
    $30.70
  • A60652 HTC Tool 1 1 2 4-1/2 30° 4 TiN Available to Order*
    $102.08
  • A63840 HTC Tool 1/2 1/2 1 3 30° 2 TiN Available to Order*
    $27.68
  • A60647 HTC Tool 1 1 2 4-1/2 30° 6 TiCN Available to Order*
    $108.32
  • A63841 HTC Tool 1/2 1/2 1 6 40° 2 TiN Available to Order*
    $65.13
  • A60650 HTC Tool 1 1 2 4-1/2 30° 4 TiCN Available to Order*
    $108.32
  • A63842 HTC Tool 1/2 1/2 1 6 40° 2 Uncoated Available to Order*
    $78.24
  • A60648 HTC Tool 1 1 2 4-1/2 30° 6 TiALN Available to Order*
    $111.44
  • A63843 HTC Tool 1/2 1/2 1 6 40° 2 TiCN Available to Order*
    $80.42
  • A60651 HTC Tool 1 1 2 4-1/2 30° 4 TiALN Available to Order*
    $111.44
  • A63844 HTC Tool 1/2 1/2 1 6 40° 2 TiALN Available to Order*
    $73.88
  • A62945 HTC Tool 1-1/4 1-1/4 2 4-1/2 30° 6 Uncoated Available to Order*
    $110.13
  • A67533 HTC Tool 9/16 1/2 1 6 40° 2 TiN Available to Order*
    $81.45
  • A62948 HTC Tool 1-1/4 1-1/4 2 4-1/2 30° 6 TiN Available to Order*
    $126.13
  • A67534 HTC Tool 9/16 1/2 1 6 40° 2 Uncoated Available to Order*
    $96.25
  • A62946 HTC Tool 1-1/4 1-1/4 2 4-1/2 30° 6 TiCN Available to Order*
    $134.13
  • A67535 HTC Tool 9/16 1/2 1 6 40° 2 TiCN Available to Order*
    $98.73
  • A62947 HTC Tool 1-1/4 1-1/4 2 4-1/2 30° 6 TiALN Available to Order*
    $138.12
  • A67536 HTC Tool 9/16 1/2 1 6 40° 2 TiALN Available to Order*
    $91.32
  • A62393 HTC Tool 1-1/2 1-1/4 2 4-1/2 30° 6 Uncoated Available to Order*
    $149.65
  • A66564 HTC Tool 5/8 5/8 1-5/16 3-7/16 30° 2 Uncoated Available to Order*
    $32.58
  • A62396 HTC Tool 1-1/2 1-1/4 2 4-1/2 30° 6 TiN Available to Order*
    $168.78
  • A66565 HTC Tool 5/8 5/8 1-5/16 3-7/16 30° 2 TiCN Available to Order*
    $41.53
  • A62394 HTC Tool 1-1/2 1-1/4 2 4-1/2 30° 6 TiCN Available to Order*
    $178.33
  • A66566 HTC Tool 5/8 5/8 1-5/16 3-7/16 30° 2 TiALN Available to Order*
    $43.02
  • A62395 HTC Tool 1-1/2 1-1/4 2 4-1/2 30° 6 TiALN Available to Order*
    $183.11
  • A66567 HTC Tool 5/8 5/8 1-5/16 3-7/16 30° 2 TiN Available to Order*
    $38.56
  • A66568 HTC Tool 5/8 5/8 1-1/4 7-1/8 40° 2 TiN Available to Order*
    $85.22
  • A66569 HTC Tool 5/8 5/8 1-1/4 7-1/8 40° 2 TiCN Available to Order*
    $102.65
  • A66570 HTC Tool 5/8 5/8 1-1/4 7-1/8 40° 2 TiALN Available to Order*
    $105.55
  • A60270 HTC Tool 5/8 5/8 1-1/4 7-1/8 40° 2 TiN Available to Order*
    $96.84
  • A65281 HTC Tool 3/4 3/4 1-5/16 3-9/16 30° 2 Uncoated Available to Order*
    $35.84
  • A65282 HTC Tool 3/4 3/4 1-5/16 3-9/16 30° 2 TiCN Available to Order*
    $46.45
  • A65283 HTC Tool 3/4 3/4 1-5/16 3-9/16 30° 2 TiALN Available to Order*
    $48.23
  • A65284 HTC Tool 3/4 3/4 1-5/16 3-9/16 30° 2 TiN Available to Order*
    $42.91
  • A65285 HTC Tool 3/4 3/4 1-5/8 3-7/8 30° 2 Uncoated Available to Order*
    $39.28
  • A65286 HTC Tool 3/4 3/4 1-5/8 3-7/8 30° 2 TiCN Available to Order*
    $52.64
  • A65287 HTC Tool 3/4 3/4 1-5/8 3-7/8 30° 2 TiALN Available to Order*
    $54.85
  • A65288 HTC Tool 3/4 3/4 1-5/8 3-7/8 30° 2 TiN Available to Order*
    $48.18
  • A65289 HTC Tool 3/4 3/4 1-1/2 8-1/4 40° 2 Uncoated Available to Order*
    $116.47
  • A65290 HTC Tool 3/4 3/4 1-1/2 8-1/4 40° 2 TiCN Available to Order*
    $140.25
  • A65291 HTC Tool 3/4 3/4 1-1/2 8-1/4 40° 2 TiALN Available to Order*
    $144.22
  • A65292 HTC Tool 3/4 3/4 1-1/2 8-1/4 40° 2 TiN Available to Order*
    $132.31
  • A65293 HTC Tool 3/4 5/8 1-1/4 7-1/8 40° 2 Uncoated Available to Order*
    $116.47
  • A60205 HTC Tool 3/4 5/8 1-1/4 7-1/8 40° 2 Uncoated Available to Order*
    $137.60
  • A65294 HTC Tool 3/4 5/8 1-1/4 7-1/8 40° 2 TiCN Available to Order*
    $141.14
  • A65295 HTC Tool 3/4 5/8 1-1/4 7-1/8 40° 2 TiALN Available to Order*
    $130.57
  • A67171 HTC Tool 7/8 3/4 1-1/2 8-1/4 40° 2 TiN Available to Order*
    $145.54
  • A67172 HTC Tool 7/8 3/4 1-1/2 8-1/4 40° 2 TiCN Available to Order*
    $171.62
  • A67173 HTC Tool 7/8 3/4 1-1/2 8-1/4 40° 2 TiALN Available to Order*
    $175.97
  • A60311 HTC Tool 7/8 3/4 1-1/2 8-1/4 40° 2 TiN Available to Order*
    $162.94
  • A60621 HTC Tool 1 1 1-5/8 4-1/8 30° 2 Uncoated Available to Order*
    $53.71
  • A60622 HTC Tool 1 1 1-5/8 4-1/8 30° 2 TiCN Available to Order*
    $72.41
  • A60623 HTC Tool 1 1 1-5/8 4-1/8 30° 2 TiALN Available to Order*
    $75.52
  • A60624 HTC Tool 1 1 1-5/8 4-1/8 30° 2 TiN Available to Order*
    $66.18
  • A60625 HTC Tool 1 1 2-1/4 4-3/4 30° 2 Uncoated Available to Order*
    $93.90
  • A60626 HTC Tool 1 1 2-1/4 4-3/4 30° 2 TiCN Available to Order*
    $112.59
  • A60627 HTC Tool 1 1 2-1/4 4-3/4 30° 2 TiALN Available to Order*
    $115.72
  • A60628 HTC Tool 1 1 2-1/4 4-3/4 30° 2 TiN Available to Order*
    $106.39
  • A60629 HTC Tool 1 1 2 10-1/4 40° 2 Uncoated Available to Order*
    $192.78
  • A60630 HTC Tool 1 1 2 10-1/4 40° 2 TiCN Available to Order*
    $228.04
  • A60631 HTC Tool 1 1 2 10-1/4 40° 2 TiALN Available to Order*
    $233.92
  • A60632 HTC Tool 1 1 2 10-1/4 40° 2 TiN Available to Order*
    $216.28
  • A63349 HTC Tool 1-1/8 1 2 10-1/4 40° 2 Uncoated Available to Order*
    $240.94
  • A63350 HTC Tool 1-1/8 1 2 10-1/4 40° 2 TiCN Available to Order*
    $283.26
  • A63351 HTC Tool 1-1/8 1 2 10-1/4 40° 2 TiALN Available to Order*
    $290.30
  • A63352 HTC Tool 1-1/8 1 2 10-1/4 40° 2 TiN Available to Order*
    $269.15
  • A62933 HTC Tool 1-1/4 1-1/4 2-1/2 5 30° 2 Uncoated Available to Order*
    $103.34
  • A62934 HTC Tool 1-1/4 1-1/4 2-1/2 5 30° 2 TiCN Available to Order*
    $129.80
  • A62935 HTC Tool 1-1/4 1-1/4 2-1/2 5 30° 2 TiALN Available to Order*
    $134.21
  • A62936 HTC Tool 1-1/4 1-1/4 2-1/2 5 30° 2 TiN Available to Order*
    $120.98
  • A62385 HTC Tool 1-1/2 1-1/4 2-1/2 5 30° 2 Uncoated Available to Order*
    $139.81
  • A62386 HTC Tool 1-1/2 1-1/4 2-1/2 5 30° 2 TiCN Available to Order*
    $171.10
  • A62387 HTC Tool 1-1/2 1-1/4 2-1/2 5 30° 2 TiALN Available to Order*
    $176.28
  • A62388 HTC Tool 1-1/2 1-1/4 2-1/2 5 30° 2 TiN Available to Order*
    $160.65

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

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