Solid Carbide Endmills G550 - Ball Nose ∙ 4F . 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, Copper, FRP, etc. . It provides an excellent surface due to better surface grindings. . New tool geometry increases wear resistance and cutting force is decreased. . Multiple flutes design improves the cutting surface. Radius Dia. CL OAL Shank Flutes Order No. (R) (d) (L1) (L) (D) (F) EPBSC * EPBSC442000U 1.0R 2 4 50 4 4 * EPBSC443000U 1.5R 3 6 50 4 4 * EPBSC444000U 2.0R 4 8 50 4 4 P M K N S H EPBSC404000U 2.0R 4 8 50 6 4 ● ● ● ○ EPBSC405000U 2.5R 5 10 50 6 4 EPBSC406000U 3.0R 6 12 50 6 4 R EPBSC408000U 4.0R 8 16 60 8 4 EPBSC410000U 5.0R 10 20 75 10 4 EPBSC412000U 6.0R 12 24 75 12 4 L1 EPBSC416000U 8.0R 16 32 100 16 4 EPBSC420000U 10.0R 20 40 100 20 4 L D (h6) Cutting conditions : Table 036 R Tolerance R≤3 ±0.015 R>3 ±0.020 A091