Ball End Mill, Center Cut, R216.4 (Hardness 43 HRC to 63 HRC), Cylindrical Shank (Part Numbers)

Basic Attributes

• work material

  • General Steel
  • Quenched and tempered steel
  • High Hardness Steel: to HRC60
  • Stainless Steel
  • Cast Iron
  • Aluminum
  • Titanium
  • Copper

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• Underneck length (ℓ1)(mm)

  • 20

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• Type

  • R216.42
  • R216.44

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• R Size(mm)

  • 0.5
  • 0.75
  • 1
  • 1.25
  • 1.5
  • 2
  • 2.5
  • 3
  • 4
  • 5
  • 6
  • 8

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• Blade length (ℓ)(mm)

  • 1
  • 1.5
  • 2
  • 2.5
  • 3
  • 4
  • 5
  • 6
  • 8
  • 10
  • 12
  • 16

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• Number of flutes(sheet)

  • 2
  • 4

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• Overall Length (L)(mm)

  • 57
  • 63
  • 72
  • 80
  • 83
  • 90
  • 92
  • 100
  • 125
  • 140

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• Shank diameter (d)(mm)

  • 4
  • 6
  • 8
  • 10
  • 12
  • 14
  • 16

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• Tool Diameter(mm)

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 8
  • 10
  • 12
  • 16

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• Axial rake angle α₀(deg)

  • 12
  • 14
  • 20

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• Dimensions α₂₁(deg)

  • 2°30'
  • 4°

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• Twist l_sh(mm)

  • 5.60 (per rotation)
  • 9.00 (per rotation)
  • 11.20 (per rotation)
  • 14.00 (per rotation)
  • 16.00 (per rotation)
  • 18.00 (per rotation)
  • 22.40 (Per Rotation)
  • 28.00 (Per Rotation)
  • 35.50 (Per Rotation)
  • 45.00 (per rotation)
  • 56.00 (per rotation)
  • 71.00 (per rotation)
  • 90.00 (per rotation)

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• Dimensions/D4(mm)

  • 5.7
  • 7.7
  • 9.7
  • 11.7

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• Dimensions/l3(mm)

  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 10
  • 12
  • 14
  • 20
  • 21
  • 26
  • 27
  • 30
  • 32
  • 36
  • 42

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