Solid Carbide Endmills M500 - High Helix Square U Type - 4F 鎢鋼平銑刀 - 高導高效能 U 型 - 4 刃 . ARCO coating provides a superior wear resistance. . For difficult to cut materials like Stainless Steel, Titanium, Inconel, Alloy Steel & Mold Steel... etc. . U-flute design with high chips volume space and easy to remove chips. . UMG carbide grade is suitable for cutting difficult materials. Dia. CL OAL Shank Flutes Order No. (d) (L1) (L) (D) (F) ESSFB4 ESSSB4 ESSFB404000A 4 10 50 4 4 ESSSB404000A 4 10 50 6 4 ESSSB405000A 5 13 50 6 4 ESSSB406000A 6 15 50 6 4 ESSSB408000A 8 20 60 8 4 ESSSB410000A 10 25 75 10 4 d ESSSB412000A 12 30 75 12 4 ESSSB414000A 14 30 75 14 4 ESSSB416000A 16 35 100 16 4 L1 L D 50 d Tolerance Ø ≦ 12 0 ~ -0.02 Ø > 12 0 ~ -0.03 A128