CoroThread 266 V-Shaped 55° Without Finishing Blade (Part Numbers)

Basic Attributes

• Number of threads (for threading)

  • 7-4 TPI
  • 14-8 TPI
  • 28-14 TPI

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• Type

  • 266R/LG-VW

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• Cutting Direction

  • Right-hand
  • Left-hand

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• O.D./ I.D. (For Threading)

  • Outer Diameter
  • Internal Diameter

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• s (Chip Thickness)(mm)

  • 3.97
  • 5.56

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• Tip Size

  • 16
  • 22

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• Diameter of Inscribed Circle iC

  • 0.375
  • 0.5

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• Material type

  • GC1020
  • GC1125
  • GC1135

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• Fixing hole diameter d1(mm)

  • 4.4
  • 5.5

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• Theoretical screw height HA(mm)

  • 1.60
  • 1.68
  • 2.79
  • 2.80
  • 5.18
  • 5.23

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• Difference in Screw Height HB(mm)

  • 0.12
  • 0.13
  • 0.25
  • 0.26
  • 0.53

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• Other Nose R(mm)

  • 0.11
  • 0.23
  • 0.47
  • 0.48

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