Solid Carbide Endmills G450 - 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. . Suitable for HRC 20 to HRC 45 Steel, Alloy Steel, Cast Iron, Aluminum Alloy (Si >15%). . Excellent cutting ability of cutting edges. . Long flutes is available in various length of cut and overall length end mills. Dia. CL OAL Shank Flutes Order No. (d) (L1) (L) (D) (F) EPSCA4 EPSCA403000U 3.0 15 60 6 4 EPSCA404000U 4.0 20 60 6 4 EPSCA405000U 5.0 25 75 6 4 EPSCA406000U 6.0 30 75 6 4 EPSCA408000U 8.0 35 100 8 4 EPSCA410000U 10.0 45 100 10 4 d EPSCA412000U 12.0 45 100 12 4 EPSCA414000U 14.0 70 150 14 4 EPSCA416000U 16.0 70 150 16 4 EPSCA420000U 20.0 75 150 20 4 L1 EPSCA425000U 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 A122