Solid Carbide Endmills G550 - Long Flute Square Type - 4F 鎢鋼平銑刀 - 長刃型 - 4 刃 . UNICO Coating provides superior wear resistance and reduces the coefficient of friction. Solid Carbide Endmills . Suitable for HRC 30 to HRC 55 Ordinary Steel, Alloy Steel, Cast Iron, Heat-Resistant Steel, etc. . Available in various length of cut and overall length end mills. . Long cutting length is suitable for deep side milling. Dia. CL OAL Shank Flutes Order No. (d) (L1) (L) (D) (F) EPSCC4 EPSCC403000U 3.0 15 60 6 4 EPSCC404000U 4.0 20 60 6 4 EPSCC405000U 5.0 25 75 6 4 EPSCC406000U 6.0 30 75 6 4 EPSCC408000U 8.0 35 100 8 4 EPSCC410000U 10.0 45 100 10 4 d EPSCC412000U 12.0 45 100 12 4 EPSCC414000U 14.0 70 150 14 4 EPSCC416000U 16.0 70 150 16 4 EPSCC420000U 20.0 75 150 20 4 L1 EPSCC425000U 25.0 75 150 25 4 L D Cutting conditions ( 建議切削參數表 ) : Table 030 d Tolerance Ø < 3 0 ~ -0.03 3 ≦ Ø ≦ 10 0 ~ -0.04 Ø > 10 0 ~ -0.05 A071