Solid Carbide EndmillsMilling Solid Carbide Endmills G550 - Roughing ∙ Square ∙ 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, etc. .Suitable for rough and high remove rate cutting environment. .Chamfering design provides a stronger cutting edge. .Middle coarse pitch provides hi performance and avoids tip fracture. Order No. Dia. (d) CL(L1) OAL Shank Flutes(L)(D)(F) EPSRR EPSRR406000U 6 15 50 6 4 EPSRR408000U 8 20 60 8 4 EPSRR410000U 10 25 75 10 4 P M K N S H EPSRR412000U 12 30 75 12 4 ● ● ● ○ EPSRR416000U 16 40 100 16 4 EPSRR420000U 20 45 100 20 4 d L1 L D (h6) Cutting conditions : Table 032 d Tolerance d≤6 0 ~ -0.02 6 < d ≤ 12 0 ~ -0.03 d > 12 0 ~ -0.04 A084