EFE 4...L : Economical 4 flute solid carbide end mills with flat & long type for general purpose of pre-hardened steels, tool steels, alloy steels and carbon steels (Hardness < 45 HRC)
EM FLUTES_4                                         EM HELIX ANGLE_30                                  
  DesignationDLapdfz
(min)
fz
(max)
GICATGIREMgiicGrade
  EFE 4040L 4.0075.020.004.000.0100.0306129020 1TT5525 
  EFE 4200L 20.00130.060.0020.000.0400.1206129029 1TT5525