Solid Carbide Endmills G550 - Long Shank Square Type - 2F 鎢鋼平銑刀 - 長柄型 - 2 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. . Flat design to avoid chipping of the cutting tip. EPSEC2 Dia. CL OAL Shank Flutes Order No. (d) (L1) (L) (D) (F) EPSKC2 EPSLC2 EPSJC204000U 4.0 10 60 4 2 EPSEC204000U 4.0 10 75 4 2 EPSNC2 EPSKC204000U 4.0 10 100 4 2 EPSMC204000U 4.0 10 60 6 2 EPSLC204000U 4.0 10 75 6 2 EPSNC204000U 4.0 10 100 6 2 d EPSMC206000U 6.0 15 60 6 2 EPSLC206000U 6.0 15 75 6 2 EPSNC206000U 6.0 15 100 6 2 L1 EPSMC208000U 8.0 20 75 8 2 EPSLC208000U 8.0 20 100 8 2 EPSNC208000U 8.0 20 150 8 2 EPSLC210000U 10.0 25 100 10 2 EPSNC210000U 10.0 25 150 10 2 L EPSLC212000U 12.0 30 100 12 2 EPSNC212000U 12.0 30 150 12 2 EPSLC216000U 16.0 40 150 16 2 EPSLC220000U 20.0 40 150 20 2 D 30° Cutting conditions ( 建議切削參數表 ) : Table 031 d Tolerance Ø < 3 0 ~ -0.03 3 ≦ Ø ≦ 10 0 ~ -0.04 Ø > 10 0 ~ -0.05 A073