Solid Carbide Endmills G550 - High Helix Square Type - 4F 鎢鋼平銑刀 - 高導型 - 4 刃 . UNICO Coating provides superior wear resistance and reduces the coefficient of friction . Suitable for HRC 30 to HRC 55 Ordinary Steel, Alloy Steel, Cast Iron, Heat-Resistant Steel, FRP, etc. . Greater shearing action results in increased speeds and feeds and faster stock removal. . Strong helix design provides hi speed milling capabilities. Dia. CL OAL Shank Flutes Order No. (d) (L1) (L) (D) (F) EPSFH4 EPSSH4 EPSFH403000U 3.0 8 50 4 4 EPSFH404000U 4.0 10 50 4 4 EPSSH405000U 5.0 13 50 6 4 EPSSH406000U 6.0 15 50 6 4 EPSSH407000U 7.0 18 60 8 4 EPSSH408000U 8.0 20 60 8 4 d EPSSH409000U 9.0 22 75 10 4 EPSSH410000U 10.0 25 75 10 4 EPSSH411000U 11.0 25 75 12 4 EPSSH412000U 12.0 30 75 12 4 L1 EPSSH414000U 14.0 30 75 14 4 EPSSH416000U 16.0 35 100 16 4 L D 45 ° Cutting conditions ( 建議切削參數表 ) : Table 029 d Tolerance Ø < 3 0 ~ -0.02 3 ≦ Ø ≦ 10 0 ~ -0.03 Ø > 10 0 ~ -0.04 A070