Item Specifications

• Additional Geometry
  Flute Spacing Unequal / Right Hand Cut Direction (RHC)
• Center Cutting
  Yes
• Chip Breaker
  No
• Coating Description
  AlTiN (Ti-NAMITE-A)
• Coolant Option
  External Coolant
• Corner Radius (RE) (Decimal Inch)
  0.0200
• Corner Radius (RE) (mm)
  0.51
• Corner Radius (RE) Tolerance (Decimal Inch)
  +0.0000/-0.0020
• Corner Radius (RE) Tolerance (mm)
  +0.000/-0.050
• Cutting Diameter (DC) (Decimal Inch)
  0.3125
• Cutting Diameter (DC) (Fractional Inch)
  5/16
• Cutting Diameter (DC) (mm)
  7.94
• Cutting Diameter (DC) Tolerance (Decimal Inch)
  +0.0000/-0.0016
• Cutting Diameter (DC) Tolerance (mm)
  +0.000/-0.040
• End Configuration
  Corner Radius
• Helix Angle
  Variable Right Spiral
• Helix Angle (Degree)
  38-41
• High Performance
  Yes
• Length of Cut (APMX) (Decimal Inch)
  0.8130
• Length of Cut (APMX) (mm)
  20.65
• Number of Flutes
  4
• Overall Length (LF) (Decimal Inch)
  2.5000
• Overall Length (LF) (Fractional Inch)
  2-1/2
• Overall Length (LF) (mm)
  63.50
• Primary Workpiece Material
  (P) Steel (M) Stainless Steel (K) Cast Iron (S) High Temp Alloy
• Rake Angle
  Positive
• Secondary Workpiece Material
  (H) Hardened Materials
• Shank Diameter (DCON) (Decimal Inch)
  0.3125
• Shank Diameter (DCON) (Fractional Inch)
  5/16
• Shank Diameter (DCON) (mm)
  7.94
• Shank Diameter (DCON) Tolerance (ISO)
  h6
• Shank Length (LS) (Decimal Inch)
  1.6870
• Shank Length (LS) (mm)
  42.85
• Shank Type
  Straight
• Tool Length
  Regular
• Unit (inch/mm)
  inch
• Variable Helix
  Yes
• Weldon Flat
  No