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
  EC050A14-4C05R0.5  5.00  5.00  14.00  50.00  4  30.0  5.0  C  0.50  0.02  0.06 IC900
  EC050A20-4C05R0.8  5.00  5.00  20.00  50.00  4  30.0  5.0  C  0.80  0.02  0.06 IC900

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