EC-A-4R :  4 flute, 30° helix medium length solid carbide endmills with various radii.  
 
 
Shouldering Slotting Ramp down Helical interpolation
  Designation
D

d

ap

L

Flute

Ha°

Rd°

ShankC-Cylindrical

r
fz
(min)
fz
(max)

  Grade
  EC080A20-4C08R0.8  8.00  8.00  20.00  63.00  4  30.0  5.0  C  0.80  0.03  0.09 IC900

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