Solid Carbide Endmills M500 - High Helix ∙ U-Flute ∙ Square ∙ 4F .U-flute design with high chips volume space and easy to remove chips. .For Stainless Steel, Pre-Hardened steel, Alloy Steel & Mold Steel... etc. .ARCO coating provides a superior wear resistance. .UMG carbide grade is suitable for cutting difficult materials. Order No. Dia.(d) CL(L1) OAL Shank Flutes(L)(D)(F) ESSSB * ESSSB441000A 1 3 50 4 4 * ESSSB442000A 2 5 50 4 4 * ESSSB443000A 3 8 50 4 4 P M K N S H * ESSSB444000A 4 10 50 4 4 ● ● ● ● ○ ESSSB404000A 4 10 50 6 4 ESSSB405000A 5 13 50 6 4 d ESSSB406000A 6 15 50 6 4 ESSSB408000A 8 20 60 8 4 ESSSB410000A 10 25 75 10 4 ESSSB412000A 12 30 75 12 4 L1 ESSSB416000A 16 35 100 16 4 L D (h6) Cutting conditions : Table 067 d Tolerance d≤6 0 ~ -0.02 6 < d ≤ 12 0 ~ -0.03 d > 12 0 ~ -0.04 A165