Solid Carbide Endmills V520 - Variable Spacing ∙ High Helix ∙ Square ∙ 4F .Unequal flute spacing for anti-vibration. .High removal rate for steel and alloy steel side milling. .Low cutting force and burr prevention for trochoidal milling. .SICO coating includes Al, Ti, Si, N elements. Order No. Dia.(d) CL(L1) OAL(L) Shank(D) Radius Flutes(F) EMSHV EMSHV408005S 8 16 60 8 0.5R 4 EMSHV410010S 10 20 75 10 1.0R 4 EMSHV412010S 12 24 75 12 1.0R 4 P M K N S H EMSHV416015S 16 32 100 16 1.5R 4 ● ● ● ● ○ d Radius L1 L D (h6) Cutting conditions : Table 062 d Tolerance d≤6 0 ~ -0.02 6 < d ≤ 12 0 ~ -0.03 d > 12 0 ~ -0.04 A151