EC-H4L-CFR (relieved neck) :  4 flute endmills with different helix (35° & 37°) and variable pitch for chatter dampening with assorted radii and relieved shanks. Used for very high material removal rates roughing and finishing operations. Full slot milling-up to 2XD.  
 
 
Shouldering Slotting Ramp down Helical interpolation
  Designation
D
d
ap
H
L
Flute
r
Rd°
ShankC-Cylindrical, W-Weldon		 fz
(min)		 fz
(max)
  Grade
  EC-H4L 06-12/20C6CFR.2-57  6.00  6.00  12.00  20.00  57.00  4  0.20  5.0  C  0.03  0.06 IC900
  EC-H4L 06-12/20W6CFR.2-57  6.00  6.00  12.00  20.00  57.00  4  0.20  5.0  W  0.03  0.06 IC900
  EC-H4L 08-16/26C8CFR.4-63  8.00  8.00  16.00  26.00  63.00  4  0.40  5.0  C  0.03  0.08 IC900
  EC-H4L 08-16/26W8CFR.4-63  8.00  8.00  16.00  26.00  63.00  4  0.40  5.0  W  0.03  0.08 IC900
  EC-H4L 10-20/32C10CFR.5  10.00  10.00  20.00  32.00  72.00  4  0.50  5.0  C  0.03  0.09 IC900
  EC-H4L 10-20/32W10CFR.5  10.00  10.00  20.00  32.00  72.00  4  0.50  5.0  W  0.03  0.09 IC900
  EC-H4L 12-24/38C12CFR.6  12.00  12.00  24.00  38.00  83.00  4  0.60  5.0  C  0.04  0.10 IC900
  EC-H4L 12-24/38W12CFR.6  12.00  12.00  24.00  38.00  83.00  4  0.60  5.0  W  0.04  0.10 IC900
  EC-H4L 16-32/50C16CFR.8  16.00  16.00  32.00  50.00  100.00  4  0.80  5.0  C  0.05  0.11 IC900
  EC-H4L 16-32/50W16CFR.8  16.00  16.00  32.00  50.00  100.00  4  0.80  5.0  W  0.05  0.11 IC900
  EC-H4L 20-40/60C20CFR1.0  20.00  20.00  40.00  60.00  110.00  4  1.00  5.0  C  0.05  0.11 IC900
  EC-H4L 20-40/60W20CFR1.0  20.00  20.00  40.00  60.00  110.00  4  1.00  5.0  W  0.05  0.11 IC900

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