Solid Carbide Endmills G550 - High Helix ∙ Square ∙ 6F . 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. . Six flute for good surface milling. Milling Dia. CL OAL Shank Flutes Order No. (d) (L1) (L) (D) (F) EPSSH EPSSH606000U 6 15 50 6 6 EPSSH608000U 8 20 60 8 6 EPSSH610000U 10 25 75 10 6 Solid Carbide Endmills P M K N S H EPSSH612000U 12 30 75 12 6 ● ● ● ○ d L1 L D (h6) Cutting conditions : Table 027 d Tolerance d≤6 0 ~ -0.02 6 < d ≤ 12 0 ~ -0.03 d > 12 0 ~ -0.04 A080