EC-A4(economical-extra long) :  SOLIDECO - economical type, 4 flute 45° helix center cutting extra long solid carbide endmills.  
 
 
Shouldering Slotting Ramp down Helical interpolation
  Designation
D
d
ap
L
Flute
Ha°
Rd°
ShankC-Cylindrical		 fz
(min)		 fz
(max)
  Grade
  EC-A4 04-30C04E75  4.00  4.00  30.00  75.00  4  30.0  5.0  C  0.02  0.05 IC08 IC900
  EC-A4 05-40C05E100  5.00  5.00  40.00  100.00  4  30.0  5.0  C  0.02  0.06 IC08 IC900

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